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  1. #1
    Join Date
    Feb 2009
    Location
    Norman, OK
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    3

    Default when water comes out tub spout it also leaks out shower head

    We just replace all the water supply lines in our house with pex and we have all new fixtures. In our bathtub we have a new KOHLER® Fairfax® Rite-Temp® shower valve, shower head and spout. When I turn on the water it comes out the spout like it is suppose to. When the water pressure is increased it starts to come out of the shower head as well. This problem occurs with the spout and shower head on or with just the pipe stubs only. All the parts are new. I flushed the system out before installing fixtures. Could the issue be my water pressure is to strong, If so how do I reduce it?

    Thanks,
    J.D.

  2. #2
    Join Date
    Feb 2010
    Location
    South*East
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    1,183

    Default Re: when water comes out tub spout it also leaks out shower head

    Most tub and shower valves will tell you NOT to use PEX between the faucet and spout. What happens is the ID of PEX is smaller then copper causing some water to backup to the shower head when turning on the spout with full volume. The other cause could be is that you have the faucet upside down.

    John

  3. #3
    Join Date
    Feb 2009
    Location
    Norman, OK
    Posts
    3

    Default Re: when water comes out tub spout it also leaks out shower head

    The installation instruction did say whether or not Pex was permissible to use between the valve and the spout or the shower head. The valve is not upside down I am sure of that. I don't believe using the Pex was the issue because they make the diverter with a few different connections. One of which is pex on all four connections. I thank you for your response, but I don't believe that is the issue.

  4. #4
    Join Date
    Feb 2010
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    South*East
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    Default Re: when water comes out tub spout it also leaks out shower head

    I may be wrong but when I look at there valve for PEX I see PEX for the hot and cold only. Not for the spout & shower the have copper or threaded connections.

    John

    http://www.kohlerserviceparts.kohler...abd1697a9f14f0

  5. #5
    Join Date
    Aug 2007
    Location
    The Great White North
    Posts
    4,045

    Default Re: when water comes out tub spout it also leaks out shower head



    NOTICE:
    Use only 1/2pipe (galvanized steel) or 1/2(5/8OD) copper pipe (type
    L or M) between the valve and bath spout. Using other materials may cause
    backpressure and result in water flowing from the showerhead and bath spout at the
    same time.


    The above is from the installation instructions


    "" an ounce of perception -- a pound of obscure "
    - Rush

  6. #6
    Join Date
    Feb 2010
    Location
    South*East
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    1,183

    Default Re: when water comes out tub spout it also leaks out shower head

    Thanks Canuk I was trying to find that.

    John

  7. #7
    Join Date
    Feb 2009
    Location
    Norman, OK
    Posts
    3

    Default Re: when water comes out tub spout it also leaks out shower head

    Thanks guys. Once you explained it a little more it makes complete sense. I guess I am going to have to open up the back of the wall and change out the pipes.

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