Blog 23 May 2026
Drain trap (gully trap)

External fitting with a built-in water seal where waste pipes discharge to the drain.

Blog 23 May 2026
Macerator unit

Small pump and grinder under a toilet or basin that lifts waste through narrow pipework.

Blog 23 May 2026
Soil and vent pipe (SVP)

Vertical pipe that carries foul waste and vents the system to atmosphere above the roof.

Blog 23 May 2026
Water seal

Layer of water retained in a trap that prevents drain odours entering a building.

Blog 23 May 2026
Greywater system

System collecting wastewater from baths and basins for reuse in toilet flushing or irrigation.

Blog 23 May 2026
Stack pipe

Vertical drainage pipe collecting flows from multiple floors and discharging into the drain.

Blog 23 May 2026
Self-sealing waste valve

Membrane valve replacing a traditional trap by sealing automatically after each discharge.

Blog 23 May 2026
Rainwater harvesting tank

Storage tank capturing roof rainwater for reuse in toilets, gardens or laundry.

Blog 23 May 2026
Drain run

Continuous length of drain pipe between two access points such as inspection chambers.

Blog 23 May 2026
Yard gully

Surface drainage point in yards and paved areas connecting run-off to the drain.