10:16AM | 09/27/04
Member Since: 09/26/04
2 lifetime posts
Just moved into a new home in July and having several problems with it but I'll try to stay on basement in this forum. We have basement stubbed for bathroom/laundry but don't have anything hooked up. Also, we had to have a pump put in as per builder so we could pump the gray water, etc out when they are hooked up. ANYWAY, whenever, we get a good rain (and we've had alot) the sewage smell that overcomes the basement is gagging. You can tell it's concentrated at the corner of basement where pump is or where pipes for future appliances/toilet is but it overwhelms the entire basement. Within a couple days of rain drying up, smell goes away. What is it? Plumber who lives two doors down says this builders plumber is an idiot so I'm not feeling real confident about our builders plumber saying we have to put water down our pipes every 10-14 days until we get bathroom hooked up. Thanks for your help, my husband is in Afghanistan and I'm not real educated about these things but getting there the hard way.



04:25PM | 09/27/04
Member Since: 01/28/03
693 lifetime posts
Your builder's plumber is correct.

If the stub-ins have been installed correctly they will have traps installed under the concrete slab.

These traps need to be filled with water or gases from your septic system/public sewer line can back up into your house.

If these traps are not connected to a continuously used water supply, the water in the traps will evaporate making a perfect connection to the sewer line or septic tank.

You can help alleviate some of the smell by filling the traps with water then also wrapping and taping Saran Wrap or a Baggie over the pipes to prevent evaporation and gas from entering the house.

Better still, you can purchase rubber 'plugs' made to block sewer gases from a local plumbing supply...


03:12AM | 09/28/04
Member Since: 09/26/04
2 lifetime posts
Thank you for that advice. Still, can you explain why this smell only occurs with heavy rain but then dissipates after it starts drying out without ever having added water to the traps?

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