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Old 10-29-2012, 12:19 PM   #1
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Tub cold water faucet ok, then begins leaking


I have dual controls. When the water is shut off, there is no drip for quite a while - at least an hour. After that, there is a slow steady drip of cold water. I pulled out the valve which is all mostly white plastic ( I don't see any gaskets or o-rings), tightened everything up and put it back in - but still the same results?

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Old 10-29-2012, 01:10 PM   #2
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Tub cold water faucet ok, then begins leaking


If I have my brain cells in the correct order I'm seeing washerless controls at your tub . With that in mind, the next time you pull that plastic valve out look inside the body with a flashlight to see if you can locate a cupped seat with a spring behind it . It comes out with needle nose pliers . If so, replace both the white valve and the seat . I'm known for repairing what ain't broke so while you are there do the hot side also . This only applies if you have washerless controls .


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Old 10-30-2012, 02:53 PM   #3
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Tub cold water faucet ok, then begins leaking


Thanks much! I replaced the stem and the 'gasket' with the spring. The spring is cone shaped and I placed the narrow end facing outward. It still is leaking? Was there some kind of a 'goop' I should have included? Or, maybe it will take a bit of time for that cupped gasket to seal ??
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Old 10-30-2012, 03:29 PM   #4
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Tub cold water faucet ok, then begins leaking


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Thanks much! I replaced the stem and the 'gasket' with the spring. The spring is cone shaped and I placed the narrow end facing outward. It still is leaking? Was there some kind of a 'goop' I should have included? Or, maybe it will take a bit of time for that cupped gasket to seal ??
If your faucet valve looks similar to this one pictured there is no requirement for ' goop '.

If time permits I do usually disassemble the valve stem and bonnet to apply a small amount of plumber's grease to an internal " O " ring and the one visible in the pic to make everything slide a little better.

I've never had one that new parts didn't solve the problem so I'm sorry but I'll have to throw my hands in the air on this one and maybe a real plumber will drop by with the correct answer.
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Last edited by Fairview; 10-30-2012 at 03:32 PM.
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Old 10-30-2012, 04:49 PM   #5
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Tub cold water faucet ok, then begins leaking


Parts are just like your image!
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Old 10-30-2012, 05:02 PM   #6
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Tub cold water faucet ok, then begins leaking


I believe I mis-read your earlier reply. Try putting the larger end of the spring in the cupped seat as we see it in the picture.
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Old 10-30-2012, 05:32 PM   #7
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Tub cold water faucet ok, then begins leaking


I pulled it all out, and now see that that the larger end of the spring will not fit toward the outside. Put it all back and it still leaks. These are Delta parts.
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Old 10-30-2012, 05:41 PM   #8
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Tub cold water faucet ok, then begins leaking


Wow - it's HOT water leaking now. I believe you said to replace each side? Maybe just the cupped and spring will stop the hot side now ?
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Old 10-30-2012, 06:56 PM   #9
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Tub cold water faucet ok, then begins leaking


Sorry, it is still cold water, and leaking as much as ever?
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Old 10-30-2012, 07:14 PM   #10
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Tub cold water faucet ok, then begins leaking


Does it leak with the knob removed ? If it still leaks with it removed try pushing on the valve stem and see if it stops .
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Old 10-31-2012, 07:03 AM   #11
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Tub cold water faucet ok, then begins leaking


Update: On cold side I have a new cup and spring. On hot side, new valve, cup and spring. Currently, NOT LEAKING Thank you very much, fingers crossed!
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Old 10-31-2012, 07:48 AM   #12
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Tub cold water faucet ok, then begins leaking


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Update: On cold side I have a new cup and spring. On hot side, new valve, cup and spring. Currently, NOT LEAKING Thank you very much, fingers crossed!
You are welcome.

With a clean water supply free of scale
, rust or a well pump pumping a little sand etc., a life span of 20 + years isn't uncommonfor those valves. I rate them right up there with the advent of the serpentine belt on our automobiles. The others were great in their day but their day is over, thank goodness.

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