



Below Ground Grease Traps | Poly-Trap GT Range
The Polytraps GT range of High-Density Poly Ethylene (HDPE) grease traps are available in 3 sizes and designed for below ground installation.
Poly-Traps are supplied as standard with 110mm pipework connections and 5 tonne rated 600 x 450mm galvanized steel covers.
The GT range are ideal for small to medium cafes, restaurants & pubs. Sizing from 150 – 450 litre with ribbed plastic construction with internal welded sludge baffle & grease retaining dip pipe baffle.

Benefits
- All Fittings supplied
- 10 Year Warranty
- Air tight neoprene lid seal
- Simple To Install
GT Grease Traps:
The Polytrap GT range are ideal for pubs & restaurants on main drainage or operating their own sewage treatment / septic plants.
Low Maintenance:
As a guideline we would recommend regular inspection and emptying on a three monthly basis by your local licensed waste carrier. For smaller pubs & cafes this may be increased to 6 monthly depending on usage.
GT Below Ground Grease Traps
GT1 Underground
150 Litre Grease Trap
Application: | S - M Sized Rest's / Pubs |
Capacity: | 150 Litres |
Cover: | Galvanized Steel Pedestrian UK Rated |
Inlet: 110mm: | Outlet:110mm |
Material: | High Density Polyethylene |
Dry Weight: | 15 kg |
Installation: | Underground |
£285.00
GT2 Underground
300 Litre Grease Trap
Application: | Med Rest's / Pubs / Hotels |
Capacity: | 300 Litres |
Cover: | Galvanized Steel Pedestrian UK Rated |
Inlet: 110mm: | Outlet:110mm |
Material: | High Density Polyethylene |
Dry Weight: | 30 kg |
Installation: | Underground |
£485.00
GT3 Underground
450 Litre Grease Trap
Application: | Lrg Rest's / Pubs / Hotels |
Capacity: | 450 Litres |
Cover: | Galvanized Steel Pedestrian UK Rated |
Inlet: 110mm: | Outlet:110mm |
Material: | High Density Polyethylene |
Dry Weight: | 45 kg |
Installation: | Underground |
£495.00
GT Riser
HDPE Extension Riser
Application: | Compatible with GT Grease Traps |
Height: | 220mm per riser Stackable |
Material: | High Density Polyethylene |
£35.00
GT Installation Methods - Below Ground
Stage 1: Lay a minimum 100mm base of concrete. During this stage case should be taken to ensure that the bottom of the unit is uniformly supported so that point loads to the base are avoided. Connect the incoming and outgoing pipe work preferably using standard UPVC couplings. Please ensure all the units are connected properly and have correct levels, ensure no negative falls are in the system before connection to inlet and outlet pipes.
Stage 2: Ensure there is an adequate water supply available. It is recommended that the unit is at least half filled with water for ballast and to the unit floating, and then pour concrete around the sides of the tank with a minimum 100mm of concrete around the unit, making sure concrete is packed into the ribs. This will take you to just below the pipe work. Do not use vibrating pokers to consolidate the concrete.
Stage 3: Should one of our extensions be fitted to accommodate extended invert. This should be backfilled with concrete as detailed above. Please note extensions can only be supplied to 1000mm in line with Building Regulation and Health and Safety. Deeper inverts should be accommodated by use of our Access Chambers (please ask for more details if you are unsure).
Stage 4: It is important to check the unit has been filled (Primed) with reasonably clean water to the bottom invert or waterline of the outlet pipe. This is the unit’s normal water level when at rest. Check all pipe connections are clear from obstructions.
