HomeMy WebLinkAbout(8) Strongs Yacht Center-Pump Station Report June 2021
STRONG’S YACHT CENTER
MATTITUCK, NEW YORK
JUNE 2021
ENGINEERING PUMP STATION REPORT
PREPARED FOR:
Strong’s Yacht Center, LLC
5780 West Mill Road
Mattituck, NY 11952
PREPARED BY:
P.W. Grosser Consulting Engineer & Hydrogeologist, PC
630 Johnson Ave., Suite 7
Bohemia, NY 11716
Phone: 631‐589‐6353
PWGC Project Number: STR2001
STRONG’S YACHT CENTER
MATTITUCK, NEW YORK
BRK1803 –Engineering PumpStation Report
TABLE OF CONTENTS
1.0 INTRODUCTION ...................................................................................................................... 2
2.0 EXISTING CONDITIONS ........................................................................................................... 2
3.0 SYSTEM DESCRIPTION ............................................................................................................ 2
4.0 SANITARY SYSTEM DESIGN INFORMATION AND CALCULATIONS ............................................. 2
TABLE OF APPENDICES
A. E‐One Duplex Pump Station Installation Instructions & Warranty Information
STRONG’S YACHT CENTER
MATTITUCK, NEW YORK
BRK1803 –Engineering PumpStation Report
1.0 INTRODUCTION
P.W. Grosser Consulting, Inc. (PWGC) was retained by the Strong’s Yacht Center, LLC to prepare a
design plan and report for the installation of a pump station at Strong’s Yacht Center. The proposed pump
station will convey the sewage from the existing 2‐story office building to the proposed manhole.
The purpose of this report is to discuss the design of the effluent pump station. The report will discuss
the design calculations utilized by PWGC in the design of the pump station and provide information on the
pumps utilized.
2.0 EXISTING CONDITIONS
The site is located at 5780 West Mill Road in Mattituck and is adjacent to Mattituck Creek. The SCTM
numbers are 1000‐106‐6‐10 & 13.4 and the site is 32.9559 acres in size. The property is currently improved
with a single‐family residence, 2‐story office building, boat slips, and 1‐story storage building.
The subject property is located in Ground Water Management Zone IV (4), which has an allowable density
sewage flow rate of 600 gpd/acre. The buildable area is 15.8345 acres. Utilizing the gross land area of
15.8345 acres, the permitted sanitary flow would be 9,500.70 gpd (15.8345 acres x 600 gpd/acre = 9,500.70
gpd).
3.0 SYSTEM DESCRIPTION
For this project, it is proposed to install a pump station that will direct sewage from the existing 2‐story
office building to a proposed manhole. The new E‐One duplex pump station will tie into the proposed onsite
sewer force main, which is connected to the existing office building.
4.0 PUMP STATION DESIGN INFORMATION AND CALCULATIONS
The design calculations utilized to size the treatment system were provided are as follows:
A. Average Daily Design Flow:
Proposed Sanitary Flow:
Non‐Medical Office Spaces = 2,702 sf x 0.06 gpd/sf = 162.12 gpd
B. Effluent Pump Station:
STRONG’S YACHT CENTER
MATTITUCK, NEW YORK
BRK1803 –Engineering PumpStation Report
Since the project is located at a marine park, the operation times of the facility are approximately
12 hours per day. Therefore, to be conservative the pump station has been designed based upon
12 hours of operation.
Required Capacity: 30 Minute Fill Time @ Average Daily Flow
=162.12 gpd / 960 min/day = 0.17 gpm
=0.17 gpm x 30 min = 5.10 gallons capacity
Provided Capacity: 39 gal of storage between pump off and pump on
Peak Flow: Ten States Standards Peaking Factor = 4.47
Peak Flow = 162.12 gpd x 4.47 = 724.7 gpd
724.7 gpd / 720 min/day = 1.00 gpm
The effluent pump station will be duplex pump station operated by a 3 float system, utilizing E‐
One duplex pumps, and a 5’ Ø wet well. The pump vault includes check valve, polyethylene tank, controls
and alarm panels. The control panel for the pump station is a standalone control panel. The proposed pump
station control panel will be equipped with a generator receptacle.
The pump design calculations for the existing influent pump station pumps are shown below:
Effluent Pump Station
a. Minimum Flow Required = 1 gpm
Flow Provided = 11 gpm
Force Main Length: 119’‐2”
Equivalent Length of Fittings:
Fitting Loss (ft) Quantity Total Eq. Length (ft)
Elbows (90o) 3.00 1 3.00
Elbows (45°) 1.00 1 1.00
Tee 5.50 1 5.50
Check Valve 5.50 2 11.0
Ball Valve 0.50 2 1.00
Total 21.5
STRONG’S YACHT CENTER
MATTITUCK, NEW YORK
BRK1803 –Engineering PumpStation Report
Pipe Material: 1.25 in. diameter DR‐11 HDPE (1.34 in I.D.)
Hazen Williams Roughness Coefficient (C): 120
Calculate Friction Loss using Hazen‐Williams Equation
𝐻 ൌ 0.2083 𝑥 ൬100
120൰
ଵ.଼ହଶ
𝑥 ቆ 11ଵ.଼ହଶ
1.25ସ.଼ହହቇ ൌ 4.25 𝑓𝑡
100 𝑓𝑡
𝑃𝑖𝑝𝑖𝑛𝑔 𝐻𝑒𝑎𝑑 𝐿𝑜𝑠𝑠 ൌ ሺ21.5 𝑓𝑡 119.17 𝑓𝑡 ሻ 𝑥 4.25 𝑓𝑡
100 𝑓𝑡 ൌ 5.97 𝑓𝑡
Say: 6’
b. Static Head = 1.69’ ft
c. Total Dynamic Head
Static Head 1.69 ft Piping Head Loss 6 ft
Total Dynamic Head Loss 7.69 ft
Say: 8’
Operating Point:
22 GPM at 8’ Total Dynamic Head
Velocity: 5.75 (ft/sec)
Proposed Two (2) submersible effluent pumps. Pump station to be a E‐One DH Series 152 Duplex unit with
two grinder pumps, 120/240v, 1Ø, 1 hp with a minimum capacity of 11 gpm at a TDH loss of 8 ft.
STRONG’S YACHT CENTER
MATTITUCK, NEW YORK
BRK1803 –Engineering PumpStation Report
Appendix A
E‐One Duplex Pump Station
Installation Instructions
General Features
The model DH152 or DR152 grinder pump station is a complete unit that includes: two grinder pumps, check valve, polyethylene tank, controls, and alarm panel. A single DH152 or DR152 is ideal for up to four, average single-family homes and can also be used for up to 12 average single-family homes where codes allow and with consent of the factory.
• Rated for flows of 3000 gpd (11,356 lpd) • 150 gallons (568 liters) of capacity• Indoor or outdoor installation • Standard outdoor heights range from 93 inches to 160 inches
The DH152 is the “hardwired,” or “wired,” model where a cable connects the motor controls to the level controls through watertight penetrations.
The DR152 is the “radio frequency identification” (RFID), or “wireless,” model that uses wireless technology to communicate between the level controls and the motor controls.
Operational Information
Motor
1 hp, 1,725 rpm, high torque, capacitor start, thermally protected, 120/240V, 60
Hz, 1 phase
Inlet Connections4-inch inlet grommet standard for DWV pipe. Other inlet configurations available from the factory.
Discharge Connections
Pump discharge terminates in 1.25-inch NPT female thread. Can easily be
adapted to 1.25-inch PVC pipe or any other material required by local codes.
Discharge15 gpm at 0 psig (0.95 lps at 0 m)11 gpm at 40 psig (0.69 lps at 28 m)7.8 gpm at 80 psig (0.49 lps at 56 m)
Accessories
E/One requires that the Uni-Lateral, E/One’s own stainless steel check valve, be installed between the grinder pump station and the street main for added protection against backflow.
Alarm panels are available with a variety of options, from basic monitoring to advanced notice of service requirements.
The Remote Sentry is ideal for installations where the alarm panel may be hidden from view. NA0052P01 Rev E
DH152/DR152
1
DH152 & DR152
Typical Installation
Instructions &
Warranty Information
Duplex Station
150-Gal. Capacity
2
Environment One Grinder Pump Feature Identification
1. GRINDER PUMP BASIN – Polyethylene
2. ACCESSWAY COVER – HDPE
3. ELECTRICAL QUICK DISCONNECT (EQD) – Cable from pump core terminates here.
4. POWER AND ALARM CABLE – Circuits to be installed in accordance with local codes.
5. ALARM PANEL – NEMA 4X enclosure. Equipped with circuit breakers. Locate according to local
codes.
6. ALARM DEVICE – Every installation is to have an alarm device to alert the homeowner of a potential malfunction. Visual devices should be placed in very conspicuous locations.
7. INLET – EPDM grommet (4.5” ID). For 4.5” OD DWV pipe.
8. WET WELL VENT – 2.0” tank vent, supplied by factory in units with accessways.
9. GRAVITY SERVICE LINE – 4” DWV, (4.5” OD). Supplied by others.
9a. STUB-OUT – 4” X 5’ Long watertight stub-out, to be installed at time of burial unless the gravity service line is connected during installation. Supplied by others.
10. DISCHARGE VALVE – 1-1/4” Female pipe thread.
11. DISCHARGE LINE – 1-1/4” Nominal pipe size. Supplied by others.
12. CONCRETE ANCHOR – See Ballast Calculations for specific weight for your station height.
Supplied by others.
13. BEDDING MATERIAL – 6” minimum depth, round aggregate (gravel). Supplied by others.
14. FINISHED GRADE – Grade line to be 1 to 4 inches below removable lid and slope away from
the station.
15. VENT – Indoor installation. See section 6, Venting, on page 6.
16. VALVE – Full ported ball valve. Recommended option, for use during service operations.
Supplied by others.
17. CONDUIT – 1” or 1-1/4”, material and burial depth as required per national and local codes.
Conduit must enter panel from bottom and be sealed per NEC section 300.5 & 300.7. Supplied by
others.
18. UNION – 1-1/4” or compression type coupling. Supplied by others. (Do not use rubber sleeve
and hose clamp type coupling.)
19. VALVE – Ball valve, must provide a full-ported 1-1/4” round passage when open. Supplied by
others.
20. REBAR – Required to lift tank after ballast (concrete anchor) has been attached, 4 places,
evenly spaced around tank.
3
FAILURE TO COMPLY
WITH INSTALLATION
INSTRUCTIONS WILL
VOID WARRANTY
SEAL CONDUIT PER NEC SECTION 300.5 & 300.7
Figure 1b
Figure 1a
4
The Environment One grinder pump is a well-engineered, reliable and proven product;
proper installation will assure
years of trouble-free service.
The following instructions define the recommended procedure for installing
the grinder pump station.
These instructions cover the
installation of units with and without accessways.This is a sewage handling
pump and must be vented in
accordance with local plumbing
codes. This pump is not to be installed in locations classified as hazardous in accordance
with National Electric Code,
ANSI / NFPA 70. All piping and
electrical systems must be in compliance with applicable local and state codes.1. REMOVE PACKING
MATERIAL: The User
Instructions must be given to the homeowner. Hardware supplied with the unit, if any,
will be used at installation.
2. TANK INSTALLATION:
Lift the station using only the methods described on page 9, Lifting Instructions. The tank
is supplied with a standard
grommet for connecting the
4” DWV (4.50” outside dia.) incoming sewer drain. Other inlet types and sizes are
optional (Caution: 4” DR-35
pipe has a smaller diameter
and won’t create a watertight joint with the standard grommet). Please confirm
that you have the correct
inlet before continuing. If a
concrete ballast is attached to the tank, lift only by the lifting eyes (rebar) embedded in the
concrete. Do not drop, roll, or
lay tank on its side. This will
damage the unit and void the warranty.
• If the tank has no accessway (Fig. 1b): (Indoor Installation): The pump
may be installed on or in the
basement floor (see Fig. 1b).
If the tank is to be set on the floor, it must be a flat and level bearing surface. If the tank is
to go into the basement floor,
it must be anchored to prevent
unit from floating due to high ground water (see Chart 1, page 12 for weight).• If the tank is to go in the
floor: A hole of the correct
width and depth should be excavated. The tank must be placed on a 6” bed of gravel
made up of naturally rounded
aggregate, clean and free
flowing, with particle size not less than 1/8” or more than 3/4” in diameter. The wetwell should
be leveled and filled with water prior to pouring the concrete to prevent the tank from shifting.
If it is necessary to pour the
concrete to a level above the
inlet, the inlet must be sleeved with an 8” tube before pouring.There must be a minimum
clearance of three feet directly
above the tank to allow for
removal of the pump.• If the tank has an accessway (Fig. 1a):
Excavate a hole to a depth,
so that the removable cover
extends above the finished grade line. The grade should slope away from the unit. The
diameter of the hole must be
large enough to allow for a
concrete anchor. Place the unit on a bed of gravel, naturally rounded aggregate, clean and
120 VOLT DUPLEX WIRING
Figure 2a
5
240 VOLT DUPLEX WIRING
free flowing, with particles not less than 1/8” or more than 3/4” in diameter. The concrete
anchor is not optional. (See
Chart 1 on page 12 for specific
requirements for your unit.)The unit should be leveled and the wetwell filled with water
to the bottom of the inlet to help
prevent the unit from shifting
while the concrete is being poured. The concrete must be vibrated to ensure there are no
voids.
If it is necessary to pour the
concrete to a higher level then the inlet, the inlet must be sleeved with an 8” tube before
pouring.
If your unit is a model taller
than 93” it may be shipped in two sections, requiring field assembly. See Field Joint
Assembly Instructions on page 8 for additional information.3. INLET PIPE INSTALLATION: Mark the inlet
pipe 3-1/2” from the end to
be inserted. Inlet pipe should be chamfered and lubricated with a soap solution. Lubricate
the inlet grommet with soap
solution as well. Insert the pipe
into the grommet up to the 3-1/2” mark. Inspect to ensure the grommet has remained
intact and in place.
4. DISCHARGE: The use
of 1-1/4” PVC pressure pipe Schedule 40 and polyethylene pipe SDR 11 or SIDR 7 are
recommended. If polyethylene
is chosen, use compression
type fittings to provide a smooth inner passage. E/One requires that an
E/One Uni-Lateral assembly (E/One part number NB0184PXX or NC0193GXX)
or E/One Redundant Check
Valve (E/One part number
PC0051GXX) be installed in the pipe lateral outside the home between the pump
discharge and the street main
on all installations. Never use
a ball-type valve as a check valve. E/One recommends the valve be installed as close
to the public right-of-way as
possible. Check local codes for
applicable requirements.CAUTION: Redundant check
valves on station laterals
and anti-siphon/check valve
assemblies on grinder pump
cores should not be used as
system isolation valves during
line tests.
• If the tank has no
accessway: (Indoor
Installation) The discharge connection is a 1-1/4” male NPT. The discharge piping
must incorporate a shut-off
valve and a union with a
minimum pressure rating of 160 psi, or a suitable piping disconnect to allow for removal
of the pump core. The valve
should be of the type that
provides a full-ported passage (i.e. a ball or gate valve). A standard 1-1/4” union or a com-
pression type coupling should
be used as a disconnect joint.
• If the tank has an accessway: There is a ball valve and a quick disconnect
pre-installed in the accessway.
There is a 1-1/4” female NPT
discharge connection on the outside of the tank 41” above the bottom of the tank.5. BACKFILL
REQUIREMENTS: Proper
backfill is essential to the long term reliability of any
Figure 2b
6
underground structure. Several methods of backfill are available to produce favorable
results with different native soil
conditions.
The recommended method of backfilling is to surround the unit to grade using Class
I or Class II backfill material
as defined in ASTM 2321.
Class 1A and Class 1B are recommended where frost heave is a concern; Class
1B is a better choice when
the native soil is sand or if a
high, fluctuating water table is expected. Class I, angular crushed stone, offers an added
benefit in that it needs minimal
compaction. Class II, naturally
rounded stone, may require more compactive effort, or tamping, to achieve the proper
density.
If the native soil condition
consists of clean, compactible soil with less than 12% fines, free of ice, rocks, roots, and
organic material, it may be
an acceptable backfill. Such
soil must be compacted in lifts not to exceed one foot to reach a final Proctor Density
between 85% and 90%. Non-
compactible clays and silts are
not suitable backfill for this or any underground structure such as inlet or discharge
lines. If you are unsure of
the consistency of the native
soil, it is recommended that a geotechnical evaluation of the material be obtained before
specifying backfill.
Another option is the use of
a flowable fill (i.e., low slump concrete). This is particularly attractive when installing
grinder pump stations in
augured holes where tight
clearances make it difficult to assure proper backfilling and
compaction with dry materials. Flowable fills should not be dropped with more than 4
feet between the discharge
nozzle and the bottom of the
hole because this can cause separation of the constituent materials.6. VENTING: The unit must
be properly vented to assure
correct operation of the pump. If you have an indoor unit, it can be vented through the
2” port supplied at the top of
the wetwell or through the
incoming sewer line with a 2” pipe (the vent must be within 4 feet of the grinder pump,
and before the first change of
direction fitting).
The outdoor units are supplied with a vent pipe from the wetwell to the top of the
accessway. Failure to properly
vent the tank will result in faulty
operation and will void the warranty.7. ELECTRICAL CONNECTION: (Supply panel
to E/One Alarm Panel)
Before proceeding, verify that the service voltage is the same as the motor voltage shown
on the name plate. An alarm
device is to be installed in a
conspicuous location where it can be readily seen by the homeowner. An alarm device is
required on every installation.
There shall be no exceptions.
Wiring of supply panel and alarm panel shall be per Figures 2a and 2b, alarm panel
wiring diagrams and local
codes. A dedicated 30 amp
breaker is required before a 240V duplex alarm panel, and a dedicated 40 amp breaker is
required before a 120V duplex
alarm panel.
8. ELECTRICAL CONNECTION: (Pump to Panel) (Fig. 4) The grinder
pump station is provided
with a cable for connection
between the station and the alarm panel (supply cable). The supply cable is shipped
inside the station with a small
portion fed through the cable
TYPICAL IN-GROUND
SECTION VIEW
Figure 3
7
TYPICAL SUPPLY CABLE
CONFIGURATION
Figure 4
connector mounted on the wall of the fiberglass shroud. The supply cable, a six
conductor tray cable, meets
NEC requirements for direct
burial as long as a minimum of 24” burial depth is maintained. Those portions of the cable
which have less than 24” of
cover must be contained in
suitable conduit. This includes the vertical portion dropping to a 24” depth at the station
and the length rising out of the
ground at the control panel.
NOTE: Wiring must be installed
per national and local codes.
Conduit must enter panel from
bottom and be sealed per NEC
section 300.5 & 300.7.
8a. Installing E/One supply cable:1) Open the lid of the
station. Locate the cable and
the feed-thru connector on
the wall of the shroud. If the station has a field joint and was delivered in two pieces,
be sure both halves of the
EQD are securely assembled
together. Loosen the nut on the connector and pull the supply cable out through
the connector until it hits the
crimped-on stop feature on the
cable, approximately 24” from the EQD. **IMPORTANT: All
but 24” of the cable must be
pulled out of the station, and
the EQD and Equalizer should
be hung as high in the station
as possible to ensure that the
pump functions properly. Do
not leave the excess cable in
the station.
2) Retighten the nut. This connection must be tight or ground water will enter the
station.
3) Feed the wire through the
length of conduit (contractor provided), which will protect it until it is below the 24” burial
depth.
4) Position the conduit
vertically below the cable connector along side of the station reaching down into the
burial depth. Attach the small
guard (protective shroud)
provided with the station to protect the exposed cable where it enters the station.
Four self-tapping screws are
provided.
5) Run the cable under-ground, in a trench or tunnel, to the location of the alarm
panel. Leave a 6- to 12-inch
loop of cable at each end to
allow for shifting and settling. Connections made at the panel are shown in Figures 2a and
2b.
9. DEBRIS REMOVAL: Prior
to start-up test procedure, the core must be removed and the incoming sewer line flushed to
force all miscellaneous debris
into the tank. Next, all liquid
and debris must be removed. Once tank is clean, reinstall the pump and proceed with the
test.
10. TEST PROCEDURE:
When the system is complete and ready for use, the following steps should be taken to verify
proper pump and high level
alarm operation:
a) Make sure that the discharge shutoff valve is fully open. This valve must not
be closed when the pump is
operating. In some installations
there may be a valve, or valves, at the street main that must also be open.
(Ignore all Trouble
indications, LEDs and/or
messages until the panel is reset at the end of this procedure.)For model DH152:
b) Turn on the alarm breaker.
c) Fill tank with water until the high level alarm turns on. Shut off water.
d) Turn on pump breaker;
the pump should turn on
immediately. Verify that the high level alarm turns off
Power at the station must not drop below 10% of nameplate voltage. Maximum Recommended Length:
120 Volt 60’ (min. voltage at pump — 108V)
240 Volt 150’ (min. voltage at pump — 216V)
Consult factory for longer lengths
8
and then the pump turns off. Proceed to Step E.
For model DR152:
b) Fill tank with 100 gallons of
water.c) Turn on pump and alarm breakers; the pump and high
level alarm should turn on
immediately.
d) Verify that the high level alarm turns off and then the pump turns off.
e) Clear/Reset the alarm
panel:
Sentry and T260 panels: Reset is not required.Protect Panel: Turn pump
and alarm breakers off and
back on simultaneously.
Protect Plus Panels: Perform a “cold start” from the Initialize System menu. Any user setting
that were previously chosen
will not be reset.
f) If any Trouble or alarm conditions are indicated after the panel is reset, contact your
local service provider.
9
Field Joint Assembly Instructions
Parts included in Field Joint Kit:
Identify all parts before proceeding
with installation.
(16) 3/8-16 x 1-1/2 long screws
(16) 3/8-16 Elastic Stop Nuts
(32) Flat Washers
(1) Length Sealant (Sika) Tape
(1) Hole Punch
(1) Vent Pipe Extension
1) Carefully clean and dry both
accessway flanges with solvent.
IMPORTANT: Sealing surfaces
must be dry to ensure the
sealant adheres correctly.
2) Starting at one hole of tank
flange, apply two layers of Sika
Tape around the inside half of the
flange. Align the outside edge of
the tape with the bolt circle. Move
to the adjacent hole and apply
one layer of Sika Tape around
the outside of the flange. Align
inside of tape with the bolt circle.
Remove the backing paper as you
lay the adhesive on the flange.
Do not stretch Sika tape during
application; it may result in a
leak. The tape should overlap at
the end by approximately 1/2 inch,
as shown in Fig. 5a. If a section
of Sika Tape is misapplied, the
bad section may be cut out and
replaced. Cut away the poorly laid
portion cleanly with a knife and be
sure to over lap the tape at each
end about 1/2 inch.
3) Using the tool provided,
punch a hole through the tape at
each of the 16 existing bolt holes
in the flange. Be careful to keep
the exposed sealant clean and
dry.
4) Insert three of the sixteen 3/8-
16 x 1-1/2” long bolts, with a flat
washer, into the flange attached to
the upper part of the accessway.
These will act as guides while
aligning the bolt pattern of the two
flanges.
5) Support the upper accessway
section a few inches over the
tank, making sure to align the vent
port in the lid with the vent pipe
in the tank. Once aligned, lower
the upper section onto the mating
flange using the three bolts to
guide it to the proper position. See
Fig. 5b.
6) Insert the remaining 13 bolts
with flat washers into the flanges.
Place a flat washer and elastic
stop nut on the end of each bolt,
turning the nut on just enough to
hold the washer in place.
7) Tighten the bolts until the
sealant begins to squeeze out
from between the flanges. To
ensure a consistent, sturdy seal,
tighten them in the following
sequence: 1, 9; 5, 13; 3, 11; 7, 15;
2, 10; 4, 12; 6, 14; 8, 16. Always
be sure to tighten one bolt and
then the bolt at the position 180°
from it; see Fig. 1 for position
numbers.
8) Using the same sequence as
in Step 7, tighten each bolt to 60
in-lbs. Visually inspect the joint,
each bolt and each nut should
have a flat washer between it and
the flange, and a uniform amount
of sealant should be protruding
from the seam along the entire
perimeter.
In the event that there are
any voids in the sealant, the
joint may leak. Take corrective
actions if necessary and be
sure that the joint is leak free
before continuing.
9) Install the vent pipe extension
piece, which was shipped inside
the upper piece of the accessway.
Push the extension pipe into
the bell mouth fitting on the pipe
installed in the wet well tank. Be
sure the pipe is seated correctly.
Slide the top end of the extension
pipe into the receptacle on the
bottom of the lid.
IT IS EXTREMELY IMPORTANT THAT THE JOINT IS SEALED PROPERLY BEFORE
BACKFILLING. EXCAVATING A UNIT FOR REPAIR IS VERY EXPENSIVE AND CAN BE EASILY AVOIDED BY USING PROPER CAUTION DURING THE FOLLOWING PROCEDURE.
Figure 5a Figure 5b
10
Lifting Instructions
FAILURE TO FOLLOW THESE INSTRUCTIONS COMPLETELY WILL VOID WARRANTY.
* Transporting unit to installation site: Always lift a unit from the bottom for the purpose of transportation. The station should be received attached to a pallet for this purpose. Never roll a station or move it on its side.
1. No Ballast, No Eye bolts
(Ballast to be poured in place):
If the concrete anchor is to be
poured while the station is in place
and it has no eye bolts, lift the
unit by securing two 20 foot flat
or round eye slings around the
station. Loop the slings around
the station and use an appropriate
lifting beam or tie-down strap to
ensure the safety of the station
and people close to the unit. (see
below)
2. No Ballast, Factory- Installed
Eye Bolts (Ballast to be poured
in place): If the concrete anchor
is to be poured while the station
is in place lift the unit by securing
straps to the eyebolts supplied on
the lower flange, as shown below.
Keep station oriented vertically to
avoid any damage. Only lift from
the eyebolts to put unit in hole,
not for moving any distance. (see
below)
3. Precast Ballast: Never lift a station that has a ballast attached by any means except the rebar hooks. The weight of the concrete will damage the station if you attempt to lift it from any part of the station. (see below)
11
E/One Grinder Pump Station Ballast CalculationsAny buried vessel that is submerged, or partially submerged, in water will be acted on by an upward
buoyant force that attempts to return the vessel to a non-submerged state. The magnitude of this
buoyant force is equal to the volume of the vessel that is submerged multiplied by the density of water.
On most in-ground installations a ballast, or concrete anchor, of proper volume and weight is required
to resist the buoyant force. The amount of ballast required for a given set of installation site conditions may be calculated as follows.
Installation Site Assumptions
1. Low water table – under worst case ground water or flood conditions, only the wet well portions
of the E/One grinder pump stations will be submerged.
2. Backfill materials are per these installation instructions.
3. The consulting engineer should perform a soil test to determine if the assumptions that have
been made are valid. If the site conditions differ from these assumptions, then the
consulting engineer must revise the calculations as shown in this document.
Physical Constants
1. Density of Water = 62.4 lb/cu ft
2. Density of Concrete = 150 lb/cu ft (in air)
3. Density of Concrete = 87.6 lb/cu ft (in water) 4. Density of Dry Compacted Backfill = 110 lb/cu ft
5. Density of Saturated Backfill = 70 lb/cu ft
Procedure
A. Determine the buoyant force exerted on the station.
1. Determine the buoyant force that acts on the grinder pump station when the wet well is
submerged in water.2. Subtract the weight of the station from the buoyant force due to the submerged wet well to
determine the net buoyant force acting on the station.
B. Determine the ballast force exerted on the station.
1. Determine the ballast force applied to the station from the concrete, saturated soil and dry
soil.
C. Subtract the ballast force from the buoyant force.
1. If the installation site conditions are different from those listed above, the consulting
engineer should recalculate the concrete ballast.
Ballast Calculations
The following calculations are to outline the areas used to determine the volumes of the different
materials for the ballast. All sections referred to in the calculations are marked on the accompanying
drawing.
12
E/One Grinder Pump Station Ballast Calculations
Sample Calculation
Volume of Station Wet Well = 22.0 cu ft Station Weight = 470 lb
Station Height = 93.5”
A. Buoyant Force
1. The buoyant force acting on the submerged DH152-93 is equal to the weight of the
displaced water for the section of the tank that is submerged (wet well).
Fbuoyant = (density of water)(volume of DH152-93 wet well)
= (62.4 lb/cu. ft)(22.0 cu. ft) = 1372.8 lb
2. The net buoyant force acting on the station (Fnet-buoyant) is equal to the buoyant force (Fbuoyant)
minus the weight of the grinder pump station.
Fnet-buoyant= 1372.8 lb – 470 lb = 902.8 lb
B. Ballast Force
1. Determine the volume of concrete (if applicable) and soil (saturated and dry).
Section I: Used to determine the volume of concrete
Area = (Height)(Width) + (Triangular Area)
= (20”)(3.1”) + (1/2)(7”)(5.5”)
= 81.3in2
Volume = (Area)(Average Perimeter of the cylinder)
= (81.3in2)(2π)(20.95”) = 10701.74
= (10701.74 in3 )(1/1728 ft3/in3)
= 6.2 ft3
Section II: Used to determine the volume of saturated soil
Area = (Height)(Width)
= (16.5”)(3.1”) = 51.2in2
Volume = (Area)(Average Perimeter of the cylinder)
= (51.2in2)(2π)(21.0”)
= (6755.7 in3 )(1/1728 ft3/in3) = 3.9 ft3
13
E/One Grinder Pump Station Ballast Calculations
Sample Calculation, Continued
Section III: Used To Determine The Volume Of Dry Soil
Area = (Height)(Width) + (Top Area)
= (36.5”)(3.1”) + (17.5”)(9.3”)
= 275.9in2
Volume = (Area)(Average Perimeter of the cylinder)
= (275.9in2)(2π)(17.9”)
= (31030.2 in3 )(1/1728 ft3/in3)
= 18.0 ft3
2. Determine the combined ballast
Ballast (total) = Ballast (concrete) + Ballast (saturated soil) + Ballast (dry soil)
= (Vconcrete)(density concrete in water) + (Vsoil)(density wet soil) + (Vsoil)(density dry soil)
= (6.2 cu ft)(87.6 lb/ft3) + (3.9 cu ft)(70 lb/ft3) + (18.0 cu ft)(110 lb/ft3)
= 543.12 lb + 273 lb + 1980 lb
= 2796.12 lb
C. Subtract the buoyant force from the ballast force to determine the final condition
Final Condition = Ballast Force – Buoyant Force = 2796.12 lb – 902.8 lb
= 1893.3 lb
The approach outlined above may be used to calculate the ballast requirements listed below.
Chart 1
Station
Height (in)
Wetwell
Volume (cu ft)
FNet-Buoyant(lb)
Station
Weight
(lb)
Fballast
(lb)
Volume Concrete (cu ft)
Weight Concrete
in Air (lb)
93 inches 22 902.8 470 2787.4 6.1 915
129 inches 22 863.8 509 5174.4 6.1 915
160 inches 22 833.8 539 7253.4 6.1 915
14
15
Adjusting the Height of the Grinder Pump Station
TO INCREASE STATION HEIGHT 6 INCHES
1. Increasing station height can be done without cutting the station. Use the E/One Extender cover shroud
kit (ND0082G01) and follow the instructions that are included with the kit.
TO INCREASE STATION HEIGHT MORE THAN 6 INCHES or TO REDUCE THE STATION HEIGHT:
REMOVE EXISTING COVER ASSEMBLY (Fig. 6)
If your existing station has a welded-on cover shroud you will need the
appropriate replacement cover kit (see Table 2, page 15).
1. Turn off all power to the grinder pump station.
2. Remove the tank lid and the electrical shroud.
3. Unplug the electrical quick disconnect (EQD) and remove the EQD
from the supply cable. Note: DO NOT CUT CABLE. Loosen liquid tight
cable connector and pull the supply cable out through the connector on
the side of tank.
4. Tape the pump breather cable to the vent pipe in the tank.
5. Remove the soil around the tank, exposing three of
the tank corrugations below grade. Use caution not to
damage buried cable.
6. Remove existing cover shroud.
6a. Welded-on shroud (standard) - Using a hand saw,
cut the tank in the valley between the two corrugations at
grade, discard existing welded-on shroud and attached
corrugations (shroud is not to be reused). Caution:
Be careful not to cut either the vent pipe or the pump
breather cable.
6b. Clamped-on shroud - Remove band clamp and
cover shroud.
REDUCING STATION HEIGHT (Fig. 7)
7. Using a hand saw, cut the tank in the valley
between the two corrugations at grade.
8. Cut vent pipe 4 ¾” above the cut made on the
tank. Proceed to step 16.
INCREASING STATION HEIGHT (Fig. 8 and Fig. 9)
9. Remove the soil around the tank exposing it
18” deeper than the extension being installed. For
example, if you have a 2’ extension (not including the
coupler) you must dig down 3’6” minimum from
grade; if you have a 4’ extension (not including the
coupler) you must dig down 5’6” minimum from
grade. Use caution not to damage buried cable.
10. Measure from grade down 2’ (for a 2’
extension) or 4’ (for a 4’ extension) and mark
accessway. Using a hand saw, cut the tank in the
valley between the two corrugations that are closest
to your mark. Note: Make sure the welded-on
shroud of the extension will be at grade level. Be
sure you are not cutting into the wet well and you
must have two corrugations below your cut, if there
are less than two corrugations, this extension kit can
not be used.
Caution: Be careful not to cut either the vent pipe
or the pump breather cable.
Figure 6
Figure 7
Figure 8
Figure 9
16
11. Attach the vent pipe extension with the 2” vent coupling, bringing the vent well above grade.12. Clean all dirt and debris from top four corrugations on tank. Install the 24” coupler O-ring on the tank between the top two corrugations with the white or yellow line facing out and on top.13. Lube extension coupler and coupler O-ring with pipe lube or dish soap.14. Manually press coupling evenly over lubricated O-ring. If additional force is needed, place a plywood cover over the accessway and apply gentle mechanical pressure to the coupler. Note: Care must be used
when pushing down on the coupler. Excessive force or impact may result in damage and leakage.15. Frequent visual inspections during installation must be performed to determine when the tank has fully engage the coupler.
INSTALL REPLACEMENT COVER ASSEMBLY (Fig. 10)16. Clean top corrugation on accessway extension and mating surface of replacement shroud with acetone. 17. Liberally apply the silicone sealer provided to the under side of the replacement shroud where it will come in contact with the accessway extension. 18. Lube wet well vent grommet and vent pipe extension with pipe lube, non-grit hand cleaner or dish soap and slide vent pipe through grommet until tank shroud seats to accessway.19. Place SS band clamp around top corrugation and the replacement shroud. Tap with a mallet around clamp to help seat the clamp. Torque stud assembly on band clamp to a maximum 125 inlb. 20. Reinstall the supply cable, EQD**, tank lid and electrical shroud and tighten cable connector. (**See “EQD wiring order,” Table 1)21. Follow start-up procedures to ensure proper pump operation (you will find the start-up instructions in our service manual or the station installation instruction guide). PIN # COLOR
1 Brown
2 Red
3 Black
4 Grn/Yellow
5 Yellow
6 Blue
**EQD wiring order
Table 1
NOTE: IF EXISTING ACCESSWAY HAS ONLY 2
CORRUGATIONS (Fig. 11)
- If the coupler will not engage completely because the discharge piping is in the way,
and it doesn’t have a cut out,
you will need to cut a slot in the
coupler.- Using a hand, reciprocating or hole saw, cut an arch in the
coupler; the cut-out is not to
exceed 5.50” tall or 5.00” wide.Figure 11 Figure 12
Table 2
Figure 10
NC0028
DESCRIPTION PART NO.Simplex station NC0022G15Simplex, flood plain config NC0022G16Duplex station NC0022G17Duplex, flood plain config NC0022G18
17
18
Environment One Corporation
2773 Balltown Road
Niskayuna, New York 12309–1090
Voice: (01) 518.346.6161
Fax: 518.346.6188
www.eone.com NA0063P01 Rev K
10/19
A Precision Castparts Company
19
User Instructions for the Environment One Grinder Pump
General InformationYour home is served by a low pressure sewer system; the key element is an Environment One grinder pump. The tank collects all solid materials and wastewater from the house. The solid materials are then ground to a small size suitable for pumping as a slurry with the wastewater. The grinder pump generates sufficient pressure to pump this slurry from your home to the wastewater treatment receiving line and/or disposal plant.
This device complies with Part 15 of the FCC rules. Operation is subject to the following two conditions: 1) this device may not cause harmful interference; and 2) this device must accept any interference received, including interference that may cause undesired operation. Any changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate this equipment.
Care and Use of your Grinder Pump
The Environment One grinder pump is capable of accepting and pumping a wide range of materials, and an
extensive grind test is required in order to obtain NSF approval. However, regulatory agencies advise that the
following items should not be introduced into any sewer, either directly or through a kitchen waste disposal unit:
Glass Seafood shells Diapers, socks, rags or cloth Syringes
Cotton swabs Personal/cleaning wipes & sponges Disposable toothbrushes Latex/vinyl items
Metal Plastic objects (toys, utensils, etc.) Kitty litter Dental floss
Aquarium gravel Sanitary napkins or tampons Cigarette butts
Caution: Kitchen garbage disposals do not keep grease/oil out of the plumbing system
In addition, you must never introduce into any sewer:
Explosives Strong chemicals Lubricating oil and/or grease
Flammable material Gasoline
Items introduced into the sewer system from your home can potentially impact the water environment. Proper
disposal of household wastes such as window cleaners, unused/expired pharmaceuticals, paint thinners, fats,
fruit labels, etc. is important. For more information, visit http://www.wef.org.
Periods of Disuse
If your home or building is left unoccupied for longer than a couple of weeks, perform the following procedure:
Purge the System. Run clean water into the unit until the pump activates. Immediately turn off the water and
allow the grinder pump to run until it shuts off automatically.
Duplex Units. Special attention must be taken to ensure that both pumps turn on when clean water is added to
the tank.
Caution: Do not disconnect power to the unit
Power Failure
Your grinder pump cannot dispose of wastewater without electrical power. If electrical power service is
interrupted, keep water usage to a minimum.
Pump Failure AlarmYour Environment One grinder pump has been manufactured to produce an alarm signal (120 volt) in the event of a high water level in the basin. The installer must see that the alarm signal provided is connected to an audible and/or visual alarm in such a manner as to provide adequate warning to the user that service is required. During the interim prior to the arrival of an authorized service technician, water usage must be limited to the reserve capacity of the tank.
For service, please call your local distributor:
20
SEWER SYSTEMS
2773 Balltown Rd • Niskayuna NY USA 12309
(01) 518.346.6161 • www.eone.com
Environment One Corporation offers
a limited warranty that guarantees
its product to be free from defects in
material and factory workmanship
for a period of two years from
the date of installation, or 27
months from the date of shipment,
whichever occurs first, provided
the product is properly installed,
serviced and operated under
normal conditions and according to
manufacturer’s instructions. Repair
or parts replacement required as a
result of such defect will be made
free of charge during this period
upon return of the defective parts or
equipment to the manufacturer or its
nearest authorized service center.
Limited Warranty
For E/One Extreme D-Series,
W-Series & Upgrade
Model Number: ______________________
Serial Number: _______________________
Installation Date: _____________________
E/One SewersTM