Drainage, waste and sewer pipe: which pipe goes where
A drainage run uses different pipe above and below ground. 50mm waste pipe carries water from sinks, basins and baths inside the building; 110mm drainage pipe takes it underground to the sewer; 160mm to 250mm pipe is for sewer, stormwater and rainwater mains.
UPVC Drainage Pipes
Below-ground drainage for soil and waste, carrying discharge from the building out to the municipal sewer.
- Sizes
- 110mm
- Classes
- Light duty · Sewer, storm and underground drainage
| Size | Colour / use | Pack | Code |
|---|---|---|---|
| 110mm | White, surface drainage | — | DP110W |
| 110mm | Sand, underground drainage | — | DP110S |
| 110mm | Sand, with socket | — | DPS110SS |
UPVC Waste Pipes
Above-ground waste for sinks, basins and baths, run inside the building to the soil stack.
- Sizes
- 50mm
- Classes
- Light duty
| Size | Colour | Pack | Code |
|---|---|---|---|
| 50mm | White | 10 pcs | WP50L |
Sewage, Waste and Rainwater
Large-bore gravity lines for municipal sewer runs, stormwater and high-volume rainwater discharge.
- Sizes
- 160mm – 250mm
- Classes
- Heavy duty · Sand · Grey
| Size | Colour / duty | Pack | Code |
|---|---|---|---|
| 160mm | Sand | — | SWR160S |
| 160mm | Grey | — | SWR160G |
| 200mm | Sand, normal duty | — | SWR200S |
| 250mm | Sand | — | SWR250S |
Gully Head Trap
Collects waste water at ground level and seals the line against smell from the drain below.
- For use
- Ground-level waste collection and trapping
| Size | Includes | Pack | Code |
|---|---|---|---|
| 110mm | Gully head and round grate | 6 pcs | GT160X110MM |
Rodden Eye Trap
An access point on a buried run, so a blockage can be rodded clear without opening the ground.
- For use
- Inspection and rodding access
| Size | Colour | Pack | Code |
|---|---|---|---|
| 110mm | Sand | 5 pcs | RE110 |
UPVC Rainwater Gutters
Roof-edge guttering that carries rainwater to the downpipe and away from the foundation.
- For use
- Roof drainage and rainwater harvesting
| Profile | Length | Pack | Code |
|---|---|---|---|
| 146mm | 3m | — | GTR3M |
| 146mm | 6m | — | GTR6M |
Drainage & Sewage Fittings (110mm)
The bends, junctions and access pieces that turn straight lengths into a working drainage run.
- Fittings
- 110mm access tees · 110mm plain tees · 110mm access bends · 110mm plain bends
| Fitting | Colour | Pack | Code |
|---|---|---|---|
| Access tee | White | 4 pcs | AT110W |
| Access tee | Sand | 4 pcs | AT110S |
| Plain tee | White | 4 pcs | PT110W |
| Plain tee | Sand | 4 pcs | PT110S |
| Access bend | White | 5 pcs | AB110W |
| Access bend | Sand | 5 pcs | AB110S |
| Plain bend | White | 5 pcs | PB110W |
| Plain bend | Sand | 5 pcs | PB110S |
UPVC Waste Fittings (50mm)
Tees, bends and wyes that join, turn and branch the 50mm waste run from basins, sinks and baths.
- Fittings
- 50mm tee · 50mm plain bend · 50mm access bend · 50mm plain wye · 50mm access wye
| Fitting | Size | Pack | Code |
|---|---|---|---|
| Tee | 50mm | 50 pcs | WPT50 |
| Plain bend | 50mm | 50 pcs | WPPB50 |
| Access bend | 50mm | 50 pcs | WPAB50 |
| Plain wye (new) | 50mm | 50 pcs | — |
| Access wye (new) | 50mm | 50 pcs | — |
New Drainage Fittings
Just added to the range: a 110mm Y junction for angled branch lines, a gentler 45° bend, and a P trap that seals sinks and basins against sewer gas.
- Fittings
- 110mm Y junction · 110mm 45° bend · P trap
| Fitting | Size | Pack | Code |
|---|---|---|---|
| Y junction | 110mm | — | — |
| 45° bend | 110mm | — | — |
| P trap | Ask sales | — | — |