Condensate line and odor


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Old 10-24-21, 08:45 AM
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Condensate line and odor

Had Trane high efficiency heating and air installed in attic 8 yrs ago. They installed 1/2Ē clear plastic tubing condensate drain into washing machine drain. Gas odor comes out when washer spins out. So much so that I have to increase ventilation in house.This doesnít happen when heat and air are off. How should this be repaired? I have had several plumbers, HVAC service look at this over the yrs.
 
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Old 10-24-21, 09:54 AM
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A/C condensate lines rarely have any smell. You could have mold buildup inside the coil area. Is this a gas furnace ? The condensate should be discharged either outside or into a properly trapped drain line. Since you are smelling the washer when it runs.... there may not be a trap at that location.
 
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Old 10-24-21, 10:44 AM
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Hi,
It’s a gas furnace. Never had odors until line was placed in washer drain.
 
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Old 10-24-21, 10:59 AM
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Ok..... so then a logical answer would be to move the condensate line to a different location.
 
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Old 10-24-21, 03:25 PM
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Ok, wanted another opinion. My new service man told me they would put pvc line to slop sink for $375. Also I’m reading line should be 3/4”, mine is 1/2”. Thank you for your help.
 
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Old 10-24-21, 03:28 PM
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Yes.... typically the drain line is 3/4".
If you're handy that's something you could do yourself.
 
 

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