How to identified concealed pipe lekage?

Rajatmes

Apprentice
Sir request a guidance for identified lekage from concealed pipe if any..as over head tank has unusal draw down of water tank.The tank already replaced with new too.But problem is still persist.
 

Dnyan Deshmukh

Staff member
As your water levels in the tank going down, it confirms, there is leak somewhere.

Normally when there is leakage of such intensity, it will damp the the surface of wall and will reflect either from internal or external face, you can examine the walling from both side at concealed plumbing location.

If you do not see any signs there, just remove the flanges installed on the plumbing fittings and check there for any leak between plumbing point and plumbing fittings. Do check into the Nahani Trap or Multi floor trap drain for any signs of waterflow seen from tile bedding into it when the wet area is not in use. Check into the duct or on outer side of wall from where the drain connection is out, is there any water coming out from a drain spout (if installed).

If you find a flowing water from tile bedding into NT or MFT, there may be the concealed line leaking on the wall which made its way to drain the water in special way so no one can see it on wall.

You can also do pressure testing for concealed line to check if its OK or leak is causing pressure drop.

If you do not find anything, you can once also do check the main line which is coming inside and also the downtake end which is bit below the inlet level of lowest floor, this end has endcap installed on it and it is provided to collect all organic matter and clean off, if that cap is loose then you will find leak there.
 
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