Guides · Explainers
Explainers
Plain-English explanations of the plumbing terms you'll hear from plumbers, shops and HDB.
16 Oct 2026Explainers
Instant or storage water heater: which should I get?
Instant heaters cost less and need no PUB Licensed Plumber, but serve one shower. Storage heaters feed several taps and suit rain showers and bathtubs. Side by side, with costs.
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16 Oct 2026Explainers
What is a floor trap?
The grated drain in your bathroom, kitchen or service yard, with a pool of water under it that keeps sewer gas out. Its parts, what PUB requires, which covers are sold in Singapore, and how to measure for a new one.
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16 Oct 2026Explainers
What is a bottle trap?
The round canister under your basin with a screw-off bottom. How it holds water against drain smells, bottle vs P-trap vs S-trap, the 32mm and 40mm sizes sold in Singapore, chrome vs PVC, and what a replacement costs.
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16 Oct 2026Explainers
What is a gully trap?
In a Singapore flat, the gully is usually the floor trap in the kitchen or service yard. The outdoor gully trap in UK, Australian and Indian guides is something PUB's Code does not allow on a sewer pipe. What each one is, and why yours smells or chokes.
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