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Old 03-19-2015, 07:17 PM   #1
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Valve on water line to water heater dripping a lot . . .


Hi,

I am a brand new home owner so please understand my lack of knowledge :P

There is dripping coming from the water line that runs to my water heater (NOT the overflow valve).

It is coming from what appears to be some sort of drip line. I have attached an image.

I never noticed water dripping from there before, but it is now dripping at a rate of several times per second - thankfully, into the drain in my floor. It still has me concerned though.

Any ideas why it might be doing that? How can I get it to stop?
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Valve on water line to water heater dripping a lot . . .-dripping.jpg  
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Old 03-19-2015, 07:23 PM   #2
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that looks like some sort of relief valve..get a picture of the area with valve and heater togeother.. if it is relief valve should not be reduced in size and certianly not like that...sorry
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Old 03-19-2015, 07:25 PM   #3
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Where exactly is it leaking from. Can't tell by the pics, but it looks like a drip (could be solder, idk) forming at that one solder connection and then it drips down the fitting.
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Old 03-19-2015, 07:26 PM   #4
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Sure, here's a pic of the valve along with the pipe that leads to the top of the water heater.
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Old 03-19-2015, 07:27 PM   #5
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Quote:
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Where exactly is it leaking from. Can't tell by the pics, but it looks like a drip (could be solder, idk) forming at that one solder connection and then it drips down the fitting.
It's the clear line on the valve that is dripping. Capturing excess water is clearly its purpose but it never really dripped before and now it is constantly dripping at a fairly high rate.
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Old 03-19-2015, 07:46 PM   #6
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To be perfectly honest I have no idea what that valve is for or what purpose it serves. To be located there pressure relief doesn't seem right. Seems if it has a line on it maybe it's supposed to drip.
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Old 03-19-2015, 07:46 PM   #7
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Quote:
Originally Posted by ben's plumbing View Post
that looks like some sort of relief valve..get a picture of the area with valve and heater togeother.. if it is relief valve should not be reduced in size and certianly not like that...sorry
Perhaps an odd looking trap primer?

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Old 03-19-2015, 07:49 PM   #8
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Not really sure what it is. Looks like some sort of relief valve, check valve, or backflow preventer. If it's a backflow preventer it's designed that way. If it's continually dripping it may need to be replaced.

Wait for Ben or e to respond they'll know.
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Old 03-19-2015, 08:07 PM   #9
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This is why I'm thinking a primer
http://www.jrsmith.com/product.aspx?...ic+Trap+Primer

Any writing or ID marks anywhere?
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Old 03-19-2015, 08:15 PM   #10
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Could be a primer or backflow. It doesn't have any markings on it. It drains into a green tube in the floor near the in-floor drain.

I guess I shouldn't be too concerned but since its behaviour has changed it may need replacing. Whatever it is . . .
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Old 03-19-2015, 08:21 PM   #11
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This is why I'm thinking a primer
http://www.jrsmith.com/product.aspx?...ic+Trap+Primer

Any writing or ID marks anywhere?
I have not seen them around here ...good thought..
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Old 03-19-2015, 09:10 PM   #12
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That looks like a trap primer to me. Usually they let a tiny bit of water flow down the drain any time there's a fluctuation in the water pressure, as from opening/closing faucets, flushing toilets, etc. If it's letting drips of water through constantly, it's gone defective. You can either replace it, or just remove it and remember to pour a bit of water in the floor drain periodically to keep the trap from drying out.
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Old 03-20-2015, 06:09 PM   #13
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Its a thermal expansion control device. Relieves the pressure through the drip. Instead of a expansion tank someone opted for this.
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