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  1. #1
    Matt Bezanson's Avatar
    Matt Bezanson Guest

    Default Anti-scald shower valve.

    For years I have recommended that anti-scald valves be installed on shower plumbing. Here's a question from a client who has one in his house. He knows that he made a mistake during installation and mixed up the hot and cold water connections. Will the thing still work right?
    Matt B.

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  2. #2
    David Bell's Avatar
    David Bell Guest

    Default Re: Anti-scald shower valve.

    The device is on the discharge side of the valve and should work no matter the arrangement of the supply lines.


  3. #3
    Join Date
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    Default Re: Anti-scald shower valve.

    Quote Originally Posted by David Bell View Post
    The device is on the discharge side of the valve and should work no matter the arrangement of the supply lines.
    Matt, if he wants to prove to himself that it works. Have him shut off the water at the water heater (just the Hot) and see if any water comes out of the valve. The ones I am familiar with shut off both if either looses pressure.


  4. #4
    David Bell's Avatar
    David Bell Guest

    Default Re: Anti-scald shower valve.

    . The ones I am familiar with shut off both if either looses pressure.[/quote]
    Thus the premise that it doesn't matter if it's piped wrong


  5. #5
    Michael Garrity's Avatar
    Michael Garrity Guest

    Default Re: Anti-scald shower valve.

    Do you think if turning the shower on would be a good way to find out?It really is that simple.


  6. #6
    Joshua Coplan's Avatar
    Joshua Coplan Guest

    Default Re: Anti-scald shower valve.

    That is correct it will still work. Also if the shower cartridge is turned 180 degrees it will make the valve operate normal with the hot on the left and cold on the right even if it was plumbed opposite.


  7. #7
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    Default Re: Anti-scald shower valve.

    Quote Originally Posted by Joshua Coplan View Post
    That is correct it will still work. Also if the shower cartridge is turned 180 degrees it will make the valve operate normal with the hot on the left and cold on the right even if it was plumbed opposite.
    Not all valves are built to be rotated.

    Quote Originally Posted by Michael Garrity View Post
    Do you think if turning the shower on would be a good way to find out?It really is that simple.
    This would not prove the valve would protect from scalding.


  8. #8
    Michael Garrity's Avatar
    Michael Garrity Guest

    Default Re: Anti-scald shower valve.

    Quote:

    Originally Posted by Michael Garrity
    Do you think if turning the shower on would be a good way to find out?It really is that simple.

    from VH



    "This would not prove the valve would protect from scalding."

    If you stand under the shower and get scalded then it does not work.
    If you stand under the shower and not get scalded then it works.
    And remember to adjust the mixing valve or you will get scalded.
    And read the instructions.
    It really is that simple.


  9. #9
    David Bell's Avatar
    David Bell Guest

    Default Re: Anti-scald shower valve.

    [quote=Vern Heiler;122771]Not all valves are built to be rotated.


    But all valves have an inlet and outlet,,rotation does not come in to play


  10. #10
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    Default Re: Anti-scald shower valve.

    [quote=David Bell;122875]
    Quote Originally Posted by Vern Heiler View Post
    Not all valves are built to be rotated.


    But all valves have an inlet and outlet,,rotation does not come in to play
    What I am saying is not all mixing cartridges can be rotated 180 to fix the problem of reversed HOT and COLD.

    Just trying to keep others from being embarrassed,as I was, by the plumber who said I didn't know what I was talking about. I used to put in my report that the problem could be fixed by rotating the cartridge with out knowing the brand. Don't do that anymore.


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