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Old 03-17-2016, 07:00 PM   #1
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Laundry Sink


My laundry sink has a separate half inch pvc pipe under the tap that runs into the sewer line and the faucet sounds like it is constantly running. I am aware that there has to be some water that drains into the pipe to avoid sewer smell from coming up into the house. But the sound has gotten increasingly worse since we purchased the house in July. The tap is fully turned off but there is still a loud sound of running water. What could I do to fix this
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Old 03-17-2016, 07:05 PM   #2
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Re: Laundry Sink


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My laundry sink has a separate half inch pvc pipe under the tap that runs into the sewer line and the faucet sounds like it is constantly running. I am aware that there has to be some water that drains into the pipe to avoid sewer smell from coming up into the house. But the sound has gotten increasingly worse since we purchased the house in July. The tap is fully turned off but there is still a loud sound of running water. What could I do to fix this
get us some pictures'''
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Old 03-17-2016, 08:41 PM   #3
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Re: Laundry Sink


Here you go
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Old 03-17-2016, 08:58 PM   #4
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Re: Laundry Sink


Bet your sorry now Ben for asking for that picture, that's one nasty setup.
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Old 03-17-2016, 09:02 PM   #5
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Re: Laundry Sink


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Bet your sorry now Ben for asking for that picture, that's one nasty setup.
was just getting ready to say the same thing to op...never seen that before in 40 yrs...from his discription its a trap filler..
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Old 03-17-2016, 09:03 PM   #6
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Re: Laundry Sink


maybe The e plumber can help...if he seen one of these set ups...
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Old 03-17-2016, 09:12 PM   #7
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Re: Laundry Sink


The plumber at home depot knew exactly what it was and what it did. He said that the PVC is to keep the sewer smell from coming up into the pipes, I just want to know if there is something wrong with the piping or if it is the faucet that needs to be replaced
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Old 03-17-2016, 09:17 PM   #8
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Re: Laundry Sink


Looks like a trap primer, anytime there is a negative pressure on the system like using a tap or flushing a toilet it would dump water into the trap keeping the seal, I could be wrong, ive never seen a set up like this especially in residential. Something else might be wrong if your losing the trap seal (the water in the trap to keep sewer gases out). I would investigate further
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Old 03-17-2016, 10:11 PM   #9
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Re: Laundry Sink


That's one for the museum for sure
You mentioned a continuous sound, I suspect you may have a bad seat washer on either the hot or cold side. This is allowing water to continuously run, but you can't see it because it's going down the primer line.
I suggest you rebuild the faucet or replace it.
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Old 03-18-2016, 06:32 AM   #10
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Re: Laundry Sink


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Originally Posted by darrellp View Post
My laundry sink has a separate half inch pvc pipe under the tap that runs into the sewer line and the faucet sounds like it is constantly running. I am aware that there has to be some water that drains into the pipe to avoid sewer smell from coming up into the house. But the sound has gotten increasingly worse since we purchased the house in July. The tap is fully turned off but there is still a loud sound of running water. What could I do to fix this
trap primers are mostly for floor drains to keep the seal, is that where this line is going? you say sewer line, but is it the main or do you have floor drains?
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Laundry Sink-us08602051-20131210-d00000.jpg   Laundry Sink-us08602051-20131210-d00004.jpg  

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