General guidance only — all construction work must be overseen by a supervising engineer This handbook is compiled from standards and laws with every source cited, andis being reviewed for certification by engineers Use it to know what to look at, what to ask and what evidence to request on site It is not an engineering determination and can't replace an engineer · Terms of use · Limitations of the handbook

Handover and after moving in

Testing systems before handover — electrical, plumbing and leaks

Page code P22 · 93 inspection criteria · 8 illustrations

Everything on this page and the next two depends on one fact — the homeowner's bargaining power drops off a cliff the day the final instalment is paid. Before that day, asking for a re-test is routine and nobody refuses. After that day, asking for the same thing…

This page contains
Why everything must happen before the final instalment
The one principle of this page — see the figures on the instrument, not on paper
Plumbing — there are three tests, not one
Water pressure or air pressure — a question that couldn't be answered before, and now can
Water tanks — the standard even says how many grams of chlorine powder to use
Finding a leak during testing — the repair method the standard explicitly forbids
Outdoor water pipes — the standard sets it by the clock, not by steps
Electrical system — the figures I can't confirm for you, and why you can still inspect it
Water-spray testing around the house — no Thai standard, but you can do it yourself
Documents you must receive before paying the final instalment

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The full version has step-by-step checks, pass criteria, the source of each criterion and illustrations · available only to logged-in members

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