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Old 04-15-2008, 03:28 PM   #1
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Shower shut off


Hi
I just installed a new Kohler shower and Tub faucet with a new mixing manifold.No leaks
But my shower will not shut completely off when I am running just the tub water.The shower on/off is located on the bath faucet.Did I do some thing wrong ?
Thank you in advance for any information.

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Old 04-15-2008, 09:48 PM   #2
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Shower shut off


Your pipe between your manifold and shower head is either too small or has a blockage in it.

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Old 04-16-2008, 04:16 AM   #3
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Shower shut off


New 1/2 inch Pex. No blockage. I have put a couple of these together and have never had this happen.
Thank you for the reply.
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Old 04-16-2008, 07:14 AM   #4
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Shower shut off


The water pressure in this house may be higher than in the other ones you've done. 1/2" PEX ID is smaller than 1/2" copper ID and may be creating enough restriction that its forcing excess pressure up to the head.
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Old 04-16-2008, 07:44 AM   #5
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Shower shut off


Thank you Cajun1 & Gencon......................
I guess I will give copper from the manifold to the shower a try.Just made the switch from copper to Pex,like I said never had troubles before. I am running 60 pounds @ well inlet.Didn't realize Pex diameter was smaller than copper. I knew the fittings were on the small side though.Learn some thing new every day. Thank you again.
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Old 04-16-2008, 02:33 PM   #6
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Shower shut off


I'd start somewhere a lot more simple than the pipe sizing. 1/2" pex should be just fine at that pressure and for a single showerhead/tub diverter, and shouldn't cause you any problems. I see that done all the time.

You might want to try a new diverter (faucet). The little "gate" in there might not be seating. That's how you're probably transitioning from the shower head to the diverter and vice-versa. Buy a cheap one (or take the one you have back and get a replacement), put it on, and see if you have the same problem.
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Old 04-16-2008, 06:03 PM   #7
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Shower shut off


Replace the diverter seems a easier start.Guys @ the local plumbing store know me on a first name basis now............

Thank You

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