Tricel Pumping Chamber 2600 User manual

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701 Rev 3 November 2019
Tricel Domestic & Light Commercial
Pumping Chambers
Wastewater Treatment Plants
Engineering a green future

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Contents
1Health & Safety Precautions.................................................................................................................... 4
1.1 General .......................................................................................................................................... 4
1.2 Electrical /Maintenance .................................................................................................................. 4
1.3 Installation ..................................................................................................................................... 4
2Introduction: Tricel Pumping Chamber.....................................................................................................5
3Tricel Pumping Chamber Range .............................................................................................................. 6
3.1 Dimensions .................................................................................................................................... 6
3.2 Tank Drawings ............................................................................................................................... 6
3.3 Dual Pump Systems ....................................................................................................................... 8
4Transportation & Lifting .......................................................................................................................... 9
4.1 Lifting tanks up to 4.6m long.........................................................................................................10
5 Installation ............................................................................................................................................10
5.1 Installation Planning......................................................................................................................10
5.2 Inspection on reception of tanks.................................................................................................... 11
5.3 Positioning and precautions .......................................................................................................... 11
5.4Types of Installation ...................................................................................................................... 11
5.5 Installation Procedure ...................................................................................................................12
5.5.1 Excavation (Dry & Wet Sites).....................................................................................................12
5.5.2 Installation –Step by Step Guide............................................................................................... 13
5.6 Gravel Specification ......................................................................................................................14
5.7 Concrete Specification ..................................................................................................................15
5.8 Topsoil Requirements ...................................................................................................................16
5.9 Risers ............................................................................................................................................16
5.10 Non-Standard Installations ........................................................................................................... 17
5.10.1 Alternative to Concrete Backfill (For Wet Sites Without Risers Only)..................................... 17
5.10.2 Sloping ground ..................................................................................................................... 17
5.10.3 Proximity to rolling & static loads..........................................................................................18
5.11 Electrical Requirements ................................................................................................................18
5.11.1 Wiring Procedure: .................................................................................................................19
5.12 Plumbing the Tricel Pumping Chamber .........................................................................................21
6Pump Specifications...............................................................................................................................22
6.1 Tricel 75.........................................................................................................................................22
6.1.1 Operating Performance: Tricel 75..............................................................................................23
6.2 Domo GRI 11 .................................................................................................................................25
6.2.1 Operating Performance: GRI 11.................................................................................................26

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6.3 High-Level Float............................................................................................................................27
6.4 Non-Return Valve..........................................................................................................................28
7Plant Operation......................................................................................................................................28
8Disposal of Treated Water ......................................................................................................................29
9Maintenance ..........................................................................................................................................29
9.1 Regular Maintenance ....................................................................................................................29
9.2 Annual Maintenance .....................................................................................................................29
9.3 Annual Service(Availablefromyoursupplier) ..................................................................................29
9.4 De-sludging (Emptying the solid waste from the pumpingchamber) .............................................30
10 Operating Conditions ........................................................................................................................30
10.1 Conditions.....................................................................................................................................30
11 Troubleshooting................................................................................................................................32
11.1 Plant Operation.............................................................................................................................32
11.2 Odours ..........................................................................................................................................33
12 Terms & Conditions...........................................................................................................................34

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1Health & Safety Precautions
It is important to read the full technical manual prior to installation. This document should be retained for the
lifetime of the product and in the event of change of ownership be transferred to the new owner. As safety and
security are of vital importance, the following aspects are critical:
1.1 General
• Ensure that all the information contained in this manual is adhered to at all times.
• It’simportantthat locksarefittedto the lid topreventaccidentalaccess.
• Manholesareratedto125kgandareforpedestrianuseonly.
• Neverenteratank,unlessqualifiedtodoso.
• Nakedflamesshallnot beusedinthe vicinityof the tank duetothedangerof combustion.
• The manhole covers shall never be left off an unattended tank. Always lock the cover of the
plantwhenwork is completed.
• Sewage and sewage effluent can carry micro-organisms and gases harmful to human health.
Any person carrying out work on the plant must be appropriately trained. Suitable protective
clothing; including gloves, goggles should be worn at all times. Always remove contaminated
clothing and protective equipment after working with sewage treatment plants. Wash hands and
face priortoeating,drinkingorsmoking.
• Allaccess hatches must be lockedfor safety . Tanks are supplied with 3 locking points, asshown
below. All these points should be locked with a suitable locking device to prevent unauthorised
access . Locking devices are not supplied.
1.2 Electrical /Maintenance
• All electrical work to be carried out by a qualified electrician using suitable materials for the
application.
•Do not open the Tricel Pumping Chamber’s cover without firstly isolating the mains power.
• Electrical work must be carried out strictly to the manufacturer’s instructions and to the relevant
national rules for electrical installations.
• When working with machinery / electrical equipment, proximity of water shall be noted.
Electrical equipmentshallnotbe wet when working with it.
• Thereis potentialdanger when de-sludgingand thereforethis shallneverbe donealone.
1.3 Installation
• Excavationwork shouldbe plannedwithdueregardtohealthandsafetyrequirements.
•Prior to installation, please consider finished ground level when installing the Tricel Pumping
Chamber. If you envisage that a manhole riser/extension may be required to ensure manhole lid
remains above finished ground level, the Tricel Pumping Chamber must be installed with the
appropriate excavation foundation and backfill to accommodate the riser. Please refer to Section 5.9.
• Excavated material should eitherbeshoredorbattened back toa“safe”angle.

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• Use appropriate liftingequipment.
• Careshouldbetakenaroundgroundsworkmachinery.
• Keepproperfooting and balance atall time.
2Introduction: Tricel Pumping Chamber
Tricel Pumping Chambers are manufactured from Sheet Moulding Compound (SMC). Sheet moulding
compound (SMC) resin is a fiberglass-based compression moulding that is used in applications that require
high strength and durability.
Tricel pumping chambers are suitable for domestic and light commercial applications and used where gravity
drainage is not possible. The Tricel Pumping Chamber comes with a Tricel 75 pump as standard for treated
effluent and a GRI11 for raw sewage. The GRI 11 pump is also available if greater distances or a higher head is
required.
The tank is constructed from GRP and collects the effluent or foul water from low-lying developments and
pumps to the discharge point at a higher level e.g. main sewer, treatment plant or percolation area. The pump
in the pumping chamber is fitted with a control float, which activates the pump when the capacity has
reached a pre-defined level. There is a high-level float which is connected to an alarm. If this float rises the
alarm will activate alerting the home owner to possible pump failure or blockage.

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3Tricel Pumping Chamber Range
3.1 Dimensions
Tricel Pumping Chamber
2600
4000
Nominal Capacity
litres
2612
4136
Nominal inlet pipe diameter
mm
110
110
Nominal outlet pipe diameter
mm
38
38
Overall length
m
1.6
2.6
Overall width
m
1.64
1.64
Overall height
m
2.56
2.56
Inlet invert to base
m
1.375
1.375
Outlet invert to base
m
1.67
1.67
Inlet invert to ground level
m
0.535
0.535
Outlet invert to ground level
m
0.250
0.250
Height above ground level
m
0.33
0.33
Weight empty*
kg
200
300
Standard volume pumped per cycle
litres
195
336
Standard volume after alarm goes off
litres
950
1600
*Allow 100kgs extra for lifting purposes.
3.2 Tank Drawings

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3.3 Dual Pump Systems
Tricel Pumping chambers may be supplied with a backup pump in case of pump failure. In this case the two
pumps would alternate by means of a flip flop control panel to prolong the lifespan of the pumps. These
systems are fitted with non-return valves. Duel pump systems are available on request.

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4Transportation & Lifting
• Tanks must be held down during transportation using nylon straps, do not use cables or
chains to securetanks.Donot overtightenstrapsthat can result indeformationofthetank
shell.Donotdroporrolltanksfrom the truck.
• Movetanksonlyby lifting andsetting,do not drag orroll.
•Always set the tank(s) on flat smooth ground clear of debris etc. To prevent movement, tanks may
need to be tied down and chocked. Position the chocks in the locations shown below:
• Tanks are best lifted by a machine and webbing lifting straps –do not use chains or wire ropes in
contact withthetank.
• Ensuretank is emptywhenlifting.
• Care is neededto controlthe lift toensurethe tank is not damaged.
• Ensure the slings are positioned at a joint on the tank, firmly secured and the load is evenly
balanced.

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4.1 Lifting tanks up to 4.6m long
• Tanks up to 4.6m in length should be lifted using the eyebolts on the tank.
• Tanks over 4.6m in length can be lifted using only lifting straps, as shown in Option 1. However, on
sites where lifting height is restricted, a lifting bar should be used as shown in Option 2:
• Toensuretheangleof thesling is notgreaterthan60
o
,as peroption1 above,thefollowingsling
lengthsare required:
Length of tank
Minimum length of sling
1.6
1.6
2.6
2.6
5 Installation
5.1 Installation Planning
Important
Prior to the installation of the Tricel Pumping Chamber, it is important to carefully read these installation
instructions.
•When planning the installation of a Tricel Pumping Chamber, the following must be considered:
Backfill Considerations:
oIs this a dry or wet site i.e. presence of a water table?
oWhich backfill material is appropriate for this site?
oWhat is the finished ground level and will risers be required?
Note: If a riser is required, the installation may require a concrete backfill. If unsure of the
finished ground level, always use a concrete backfill as risers greater than 250mm
cannot be retrofitted without a concrete backfill.

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Site Considerations:
oIs the site restricted in terms of area or height?
oWhat is the topography of the site i.e. being it sloping or flat?
oWhat is the proposed depth of the installed tank to ensure the required slope upstream?
oAre static or rolling loads present on this site?
• Only suitably qualified personnel should perform the installation of the Tricel Pumping
Chamber .
• Suitably sized equipment will be required to excavate the hole and to lift the Tricel Pumping
Chamber into place.
5.2 Inspection on reception of tanks
• Tanks should be visually inspected for damage which may have occurred during transport
prior to installation. Any damage should be notified to the delivery driver and/or to your
supplier. Do not attempt to carry out any unauthorized repairs, as this will invalidate the
warrantyonthetank.
• Oncethetank hasbeeninstalled, Tricelcannotacceptanyclaimsfordamage.
5.3 Positioning and precautions
•The Tricel Pumping Chamber must be situated a minimum of 7m from the dwelling and should be as
far away as practically possible considering topography and pipe work levels.
•The Tricel Pumping Chamber should not be installed in an area subject to flooding or excessive water
runoff as no flood waters should enter the tank.
•The area around the Tricel Pumping Chamber should be adequately drained, to permanently remove
ground water and surface water from the proximity of the tank.
•The Tricel Pumping Chamber plant is not suitable to be used in water logged sites, where the ground
water may rise above the inlet pipe.
•When selecting the location of the Tricel Pumping Chamber, ensure that it is always accessible for
future maintenance.
5.4 Types of Installation
All installations must be “fit for purpose” to suit the on-site conditions, which will vary from site to site. This is
the responsibility of the onsite contractor.
When installing a Pumping Chamber, there are two types of standard installation method:
1. Gravel Installation
2. Concrete Installation
Two factors must be considered when determining which installation must be implemented:
1. Is the Tricel Pumping Chamber being installed in a ‘Dry Site’ or a ‘Wet Site’?
•A ‘Dry Site’ is a site in which the water table never rises higher than 300mm from the
base of the tank.

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•A ‘Wet Site’ is a site in which the water table may rise higher than 300mm from the base
of the tank. Tricel strongly advise the installation of a vertical water table inspection
pipe. This will facilitate convenient monitoring of the water table long after the
installation is completed.
Note: In difficult soils (e.g. clay with a high t-value), a site could be potentially classified
as wet if there is no drainage for surface water that enters the excavation and it rises
higher than 300mm above the base of the unit. The installer must determine this when
selecting the correct backfill.
2. Is a riser required, and if yes, what height riser must be installed? (For more information on
risers, please see Section 5.9).
The following table specifies the required installation for on-site conditions:
Factors that determine the required installation
Installation Required
Type of Site
Riser Required
Dry
None
Gravel
Dry
250mm
Gravel
Dry
500mm & 750mm
Concrete
Wet
None
Concrete
Wet
250mm, 500mm & 750mm
Concrete
Important
• Incorrectly installed tanks that are subject to movement, rotation or floatation may become
damaged, for which Tricel cannot accept liability.
• During installation, tanks must not be subjected to buoyant forces.
• Contact a qualified engineer if thereare difficulties on site due toadversewater logging.
• Ballasting the tank is important to avoid the tank from lifting when backfilling.
5.5 Installation Procedure
5.5.1 Excavation (Dry & Wet Sites)
5.5.1.1 Excavation: Length & Width
Length and width of the excavation must exceed the dimensions of the Tricel Pumping Chamber by at least
500mm to maintain a minimum space of 250mm all around the tank.
Tricel Pumping Chamber
Tank Length
(m)
Tank Width
(m)
Min. Excavation Size (L x W)
(m)
2600
1.6
1.64
2.1 x 2.14
4000
2.6
1.64
3.1 x 2.14
Note: The size of the area to be excavated applies to both dry and wet sites, however, unstable ground with
excessive sand, peat swamps etc. may require larger excavations.Theexcavationshould bemaintaineddry
by pumpingorwhateversuitablemeans.

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5.5.1.2 Excavation: Depth
The excavation depth is determinedby the inlet and outlet pipes, invert levels relative tothebottom of the
tank,andallowingfortheminimumbasethickness. Dimensiondetailsof thetankare shown on the
relevant drawing, see Section 3.2. Ground instability e.g. running sand may necessitate over-excavation
andstabilization with hard coreor blindingconcrete. The depth of the excavation for both gravel and
concrete installations are outlined as follows:
Tank Width (mm)
“a” minimum (mm)
“b” minimum (mm)
Dry Site
1640
250
250
Wet Site
1640
250
300*
* includes 50mm gravel and 250mm concrete.
5.5.2 Installation –Step by Step Guide
Steps
Installation Required
Gravel
Concrete
Installation
of the tank
base/plinth:
1
Remove any soft spots or large stones and boulders.
2
The base is constructed of a 250mm
layer of suitably compacted gravel.
The base is constructed of a 50mm layer of
suitably compacted gravel, covered with a
250mm layer of semi dry concrete.
3
Ensure that base is level and at the correct height to accommodate the incoming pipe
work.
4
It is important to maintain a completely dry
excavation until the final pour of concrete is
set. It may be necessary to line the
excavation with a continuous layer of 1200-
gauge polythene to maintain the integrity of
the concrete.
Positioning
of tank onto
5
Mechanically lift the pumping chamber
carefully into the centre of the hole and
place on the prepared plinth.
Mechanically lift the pumping chamber
carefully into the centre of the hole.

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the
base/plinth:
6
The plant must sit level on the plinth.
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Connect and seal the pipe work to the tank.
Backfilling
around the
tank:
8
Ballast the plant by filling each chamber with clean water to a depth of 300mm and
recheck the pipe work levels.
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Commence backfilling with gravel in
layers of 225mm evenly around the tank
ensuring that there are no voids until
gravel has reached 50mm over the
cylindrical body of the tank. Compact
each layer in succession. *
Commence backfilling evenly in layers of
225mm around the tank, ensuring that there
are no voids, until it has reached the invert of
the outlet pipe. Continue backfilling with
gravel, until it has reached 50mm over the
cylindrical body of the tank. *
Note:
* Continue filling the chambers with water whilst backfilling, ensure that the progressive water level
is no more than 300mm above the backfill level.
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Mount and seal manhole risers (if used). Please see 'Riser' section.
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Complete backfilling with topsoil up to the max ground level. Allow for subsequent
settlement of topsoil.
Note:
The use of geo textile barrier fabrics over the gravel backfill is considered good installation
practice. The fabric must be chosen to allow the flow of water in and out of the excavation but
to prevent the movement of fine soil particles into the gravel backfill.
Important
The plumbing to and from the plant should be completed by a competent person in accordance with
national regulationsand best practices.
5.6 Gravel Specification
Primary backfill specification
Primary backfill material should be free-flowing granular material. Compaction should be by lightweight
rollers or vibratory plate compactor until “traffic” depth has been achieved. Compact gravel evenly to
ensure tank is properly supported. Ensure the vibrating machine does not come in contact with the shell
of the tank. Tanks must be installed with primary backfill only within the region immediately
surrounding the tanks. This primary backfill must extend a minimum of 250mm outward from the tank,
anddirectlybeneaththetank.
The following materials are approved as primary backfill:
Rounded pea gravel
• Minimum particle size 3mm, maximum 18 mm, compacted to a relative density of >70%. Gravel
shall be clean and free flowing, free from large rocks, dirt, sand, roots, organic materials or
debris. Upon screening analysis, the backfill material shall have no more than 5% by weight
passing 2.36 mmSieve

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Or
Crushed or processed stone
• Minimum particle size 3 mm, maximum 12 mm, compacted to a relative density of >40%
•Dry Gravel density must be at least 1500 kg/m3. Material should be washed or screened to remove
fine particles.
•Upon screening analysis, the backfill material shall have no more than 5% by weight passing 2.36 mm
sieve.
•Use of other than specified backfill and bedding materials will void the tank warranty.
•Backfill material shall not be frozen or contain lumps of frozen material at any time during
placement.
Pea Gravel Crushed Stone
5.7 Concrete Specification
Semi dry concrete 25n grade with a ratio of 4.5 aggregate to 1 cement.
Important:
• Standard concrete mixes should not be used, where sulphates or similarly aggressive chemicals
are present in the groundwater.
• Lift height (rate of rise): Determine the lift height (m), or rate of rise (m/h) for the specific
concrete type used, to ensure that a design pressure (P max) of 15kN/m2 on the tank is not
exceeded.
• Vibration: The tank design assumes minimal compaction of the surrounding concrete. Where
necessary, this may be extended to include light internal vibration. Never use deep revibration
which will substantially increase the pressure on the tank, possibly causing failure.
• Impact of concrete on discharge: Under no circumstances should concrete be discharged directly
onto the tank.

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5.8 Topsoil Requirements
Clean native top soil shall not contain rocks larger than 36mm on largest dimension.
5.9 Risers
In the event that a Tricel Pumping Chamber requires a deeper than standard installation to align with
the wastewater outlet pipe from the dwelling, manhole risers are available for deeper installations to
avoid the access hatch being positioning in a depression, as shown in the diagram:
Risers are available in the following sizes:
• 250mm (requires installation suitable for the site conditions)
• 500mm (requires a concrete backfill) *
• 750mm (requires a concrete backfill) *
* 500mm and 750mm risers cannot be retrofitted unless the correct installation is in place.
• TheTricel Pumping Chamber is suitablefora maximummanholeriser of 750mmwhichgives
amaximuminlet invert of 1310mm,as shown below. The Tricel Pumping Chamber is not
suitable where a deeper installation is required.
Important:
•Never place the access covers below ground level.
•Only Tricelaccess covers must be used.
•Do not allow ground water or storm water to enter the pumping chamber.

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5.10 Non-Standard Installations
5.10.1 Alternative to Concrete Backfill (For Wet Sites Without Risers Only)
• The option of securing the Tricel Pumping Chamber to a reinforced concrete slab or Deadman
anchor by way of straps may also be used, as shown below:
• Tricel accepts no responsibility for the design of the concrete slab/Deadman anchor.
This solution should be designed byan on-sitestructuralengineertosuitsiteconditions.
• The straps should be positioned as close to the bolted joints as possible.
• The reinforced concrete slab/ Deadman anchor must be installed after the level of the
ground water has been lowered, if necessary.
• Once the Tricel Pumping Chamber has been secured by the straps, the backfilling with
concrete or gravel can commence.
5.10.2 Sloping ground
When the slope of the ground is 5% or more, it is recommended to install a retaining wall to protect the tank
from lateral thrust. Concrete backfill may also in some cases be sufficient to protect the tank. A qualified
structural engineer must determine if a retaining wall is required in the presence of a steep slope as shown in
the picture below:

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5.10.3 Proximity to rolling & static loads
Minimum separation distances from:
•Rolling Loads (e.g. vehicle traffic): 4 metres
•Static Loads (e.g. dwelling house, shed): 3 metres
If the tank is installed in an area where traffic or other superimposed loadings can be applied, consult a
structural engineer for the design of a reinforced concrete slab to prevent the load being transmitted to
the tank (or its concrete surround). If this slab is constructed immediately above the tank, it should be
separated from the concrete surrounding the tank by a compressible material.
5.11 Electrical Requirements
Important:
• Please ensure the electrical installation complies with all national regulations and
requirements.
• Electrical installations must be carried out by a qualified and certified electrician .
•A wiring label is located on the inside of the alarm box.
The customers’ minimum responsibility shall consist in the provision of:
•The type and size of the power supply cable must comply with all national regulations and
requirements. The specification of the cable is the responsibility of a qualified electrician.
Note: In typical domestic installations, asinglerunof1.5mm²3core(twoconductorsplusearth
conductor)steelwire armoured(SWA)cable from the customer’sdistributioncabinetto
thetank unit socketbox is required.
• The system should have its own circuit with cableprotectionvia10-amp MCB protected by (RCD),
rated230V,30mA.
• Thecablemustbeproperlybondedtothemainearth in line with current wiring regulations.
• Neverdisconnectthepowertothepump.Itis imperativethatit is running24hoursaday,everyday.

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5.11.1 Wiring Procedure:
•Wire the float into the alarm panel.
•First crimp the brown and black cores.
•Put the brown into the second live terminal and the black into terminal L.See Figures below:

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