QUOTE(my_nickleo @ Jan 20 2014, 01:44 PM)
Water mark already exist after I done my own ponding test, but developer refused to accept my defect complaints. They insist the ponding test must be done by their worker, so I let them do it. But they lied about refilling water prior joint inspection. If there is nothing wrong with the test, why they have to lie about it?
If water mark exist, even without ponding test the developer should repair it.
Anyhow, it is good to know that your developer have agreed to repair it for you.
QUOTE(MANSTIR @ Jan 20 2014, 06:11 PM)
5MM gone in 1 hour (its huge amount of water) then there's no sign of leakage, how we can be assure it will not effecting concreate in a long run?
If really 5mm gone in 1 hour and no sign of leakage, probably the reason will be the floor trap is not properly sealed.
FYI, if after ponding test there is no sign of leakage then your bathroom not likely will have waterproofing problem as when you use your bathroom, you will not pond it.
And i don't think water can affect a proper cured concrete much.