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Old 11-04-2016, 11:46 AM   #46
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Re: Can I test my sewer system for leaks myself?


I have been searching the internet and finally read this thread which is similar to the problem I am experiencing. Small service bathroom on main floor (sink and toilet only). Faint gas smell, seems to disappear after standing in the room for 15-20 seconds. Can't pinpoint the where the smell is coming from. Even the handheld gas detectors only show a faint presence of gas in the room, but the smell is quite noticeable when you come in from the adjoining room. Tried changing the toilet, cleaning the sink with vinegar and baking soda, wiping down the floors and walls with bleach... no luck. I saw that this thread ended just before the op was going to remove the toilet and block the drain pipe. I think the op is still active here... but I cannot message him directly as I am new to the forum. Was there ever a resolution to this problem?? I would love to know... I really do not want to have to spend hundreds on a plumber for a smoke test. Thanks.
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Old 11-04-2016, 11:53 AM   #47
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Re: Can I test my sewer system for leaks myself?


The cause of my issue, and I'm embarrassed to say, was that the pool door to the outside had a 1/8" gap between the door and door threshold that was letting in the marsh gassy air at night. I live on the marshy area of the inter coastal waterway. Once I fixed that, the problem disappeared.
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Old 11-04-2016, 12:07 PM   #48
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Re: Can I test my sewer system for leaks myself?


Thanks, guess I am no further ahead. I hate the idea of having to bust all my walls open to find this gas problem, especially since there is no water leak anywhere. Makes me think I am leading down the wrong trail. It's been a full week since we changed the toilet (this was my first attempt to solve the problem). Seemed fine after the plumber left but the next morning the gas smell was back. I thought maybe the gas lingers for a while so I put a portable fan in there for a whole 24 hours with the door open (the room is tiny: sink, toilet, small storage area... 40 square feet max. Anyway, thought I was right, but a few hours after I removed the fan the smell came back. This has been going on for almost a month now (I have ruled out a dead animal in the wall, I assume the smell would go away after a month??). I tried all the different cleaning tips for the sink, toilet, walls and floor... still comes back. I tried saran wrap over the ceiling fan (don't know why, thought maybe a bad smell from the attic was coming in through the fan), that did nothing. I tried blocking the sink (drain and overflow), the smell continued... Main vent does not seemed blocked, as this problem is only in this particular room, and there is no gurgling sounds from the sink or toilet when water goes down the drains. I can't believe there is a cracked pipe in the wall or drain, there is no evidence of a water leak at all. Any suggestions would be welcome, but I have a feeling the very expensive smoke test will be the only way to go at this point... Not even sure how I would see smoke if the pipe is in the wall...
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Old 11-04-2016, 03:51 PM   #49
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Re: Can I test my sewer system for leaks myself?


I have a suggestion send some other person up on the roof to dump 2 bottles of Ammonia down the vent.

You use your sniffer...
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Old 11-04-2016, 11:31 PM   #50
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Re: Can I test my sewer system for leaks myself?


What kind of smell exactly? Sewer or natural gas or dying animal?

Do your have NG in your house? If so, have you thought about turning off the gas to the house during a warm week for a day or so? (if there's a notable branch in the area with a shutoff, use that first.)

Cheers!
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Old 11-05-2016, 01:15 PM   #51
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Re: Can I test my sewer system for leaks myself?


the smell could be coming from another location and concentrating itself in that particular area, couple questions how many floors, was the bathroom an add one or was it part of the original plan, and have you in the last year done any type of remodeling any ware in the house any new alarms electrical anything or roof work ?
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