06:26PM | 11/07/13
we have moisture buildup under rug where it meets tile in the hallway. there are water pipes from main to gas heater in that area, which is in hallway. The sewer drain line runs in that vicinity as well. 2 companies have came out and done leak detection tests and haven't found a pressure leak. The sewer drain pipe was backed up and cleaned out after which a camera was run through and detected a very small possible root intrusion outside in the yard about 20 feet from the moisture source. 2 months later the moisture is still there. It seems that it gets more moisture when we shower and do laundry but its hard to tell. with 2 companies having come out and failed in diagnosing we are stumped, any advice is greatly appreciated.


09:21AM | 11/09/13
Member Since: 07/22/04
556 lifetime posts
I would have the drain line inspected for leaks with a camera not necessarily by the same people that checked it the first time.


05:54PM | 11/21/13
is it possible to have a leak between the heater and bathroom and not be detected? is there pressure in that line like the pressure in the line from the main to the heater?


06:16PM | 11/24/13
Member Since: 01/24/06
1626 lifetime posts
Has anyone suggested a pressure test (5 PSI) should tell if the drain /sewer line is the culprit


12:50AM | 12/02/13
actually they tested the pressure in line and said we had perfect pressure.


01:49AM | 12/05/13
i must have, can someone clarify?


06:22AM | 12/05/13
Member Since: 07/22/04
556 lifetime posts
I think your guy was referring to supply line static pressure while Sylvan was referring to a pressure test of the waste line.


01:38AM | 12/06/13
i didn't realize the sewer line can be pressure tested. will check into it but at this point looks like i will be re-piping the water line entirely since i cannot pinpoint the leak and am guessing it must be a pressure leak as the sewer line is not backed up at the moment. plus the pipes are 60 years old exactly so i think it would be wise to repipe.

One question i have though, is it possible for me to repipe the main to the heater and there be a leak in the pipe from the heater to the shower?
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