Smell Coming Out Of Sink In Laundry Room When I Use The Washer - Plumbing - DIY Home Improvement | DIYChatroom

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Old 09-10-2009, 10:14 AM   #1
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smell coming out of sink in laundry room when I use the washer

I have a septic system and I want to know what I can put down the drain (and which drain should I put it down) to either clear a possible clog and/or get rid of the smell


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Old 09-10-2009, 12:04 PM   #2
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When was the last time you had your tank pumped out?

Also check to see that the drains have proper traps to prevent any gas coming back in.

You can also put a very heavy dose of bleach in your washer and set it on the soak cycle (extra large load with hot water for maximum water) overnight and start it to drain the next morning. This can be helpful, especially if you do a lot of cold water washes that never really clean out the system. Follow with a filling and draining of clean water.



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Old 09-26-2009, 12:11 AM   #3
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Make sure you dont let the sink sit a long time without running water to keep the P trap full of water. Without the water you will have gases come up through your drain pipes. Don't know if you already know that but just making sure
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Old 09-26-2009, 03:48 AM   #4
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Is it a front loading washer? If so, it can be mold in the machine.
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Old 09-26-2009, 07:37 AM   #5
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Never use caustic drain cleaners like Drano on partial clogs.
I always use a good non-caustic enzyme-based drain cleaner like DrainCare. It will eat out organic gunk overnight and then you just flush the line down with hot water to clear it. It won't harm fixtures or pipes.
As suggested, run water in your utility sink regularly to keep the trap filled. That's what traps are for, to prevent sewer gas from entering your home (doesn't matter whether it's sewer or septic system).
Good Luck!
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Old 09-28-2009, 08:36 PM   #6
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it could also be that when the washing machine is discharging that is pulling the trap seal. it would be possible if that laundry sink is not properly vented and on the same waste line
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Old 09-29-2009, 10:58 AM   #7
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It's been a long time since I have seen one of these but--does your washing machine discharge hose dump straight into this sink? IF SO, and you state that this smell is only when the washing machine discharges water, could the problem actually be mold/mildew within the outer tub of the washing machine, as concretemasonry has suggested. Just another thought to help, David


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