Grease trap system flush
A full flush of the grease trap system and its connected pipework, beyond the routine clean-out — clearing grease that has hardened onto pipe walls and fittings rather than settled in the trap itself.
A full flush of the grease trap system and its connected pipework, beyond the routine clean-out — clearing grease that has hardened onto pipe walls and fittings rather than settled in the trap itself. This is a deeper, less frequent service that sits alongside your regular cleaning cycle, part of the same PUB-driven grease trap regime.
Grease builds up inside the pipework itself even when the trap is cleaned on schedule. Left unflushed, it narrows the pipe bore and eventually causes a blockage that a routine trap clean-out won’t fix — the kind of backup that shuts a kitchen down mid-service.
We don’t yet have a vetted Singapore contractor directory — ask your landlord or trade association for a recommendation.
Who this is for
Any venue with a kitchen and a grease trap installed.
What you’ll hold
- Flush service record, dated
Watch out for
- Assuming the routine 2-weekly clean-out covers this — it only empties the trap itself, not the grease hardening onto the connected pipework.
- Skipping the flush because the trap "looks fine" on the surface — the buildup this catches is inside the pipe, not visible from the trap lid.
- Not logging the flush date separately from the routine clean-out log, so it’s easy to lose track of when the 6-month cycle is actually due.
Sources
- PUB — Grease Trap Requirements checked 2026-09-08
See also
This is item 14 of 32 in the free Singapore Compliance Calendar. See the whole list →