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Thread: Need check valve fittings?

  1. #1
    Join Date
    Feb 2016
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    N.E. OH, atwater
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    Default Need check valve fittings?

    The elbow fittings that came with my RO membranes have a check valve built into them. Do I need this or is it going to be a problem if I use them?PXL_20210305_011611059.jpgPXL_20210305_011620608.jpg
    Can be read on right side of paper.
    Not sure if I use them if it will cause it not to work?

  2. #2
    Join Date
    Oct 2006
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    Garrettsville,Ohio
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    Default

    If they are there, they are meant to be used. What did you get? And where did you get them from?
    Fred Ahrens
    330-206-1606
    Richards Maple Products
    Ohio CDL sales rep

    dont take life too serious, nobody gets out alive anyways

  3. #3
    Join Date
    Apr 2012
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    poultney vermont
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    Default

    Perhaps they are trying to prevent a potential issue; if your water tank is higher than the machine, and the end is submerged you could draw all that water back into the machine and depending on your valve arrangement that liquid could go to an unintended place!!

    That's the only thing I can think of!! Otherwise you shouldn't need any check valves.
    18x30 sugarshack
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  4. #4
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    Feb 2016
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    N.E. OH, atwater
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    Default

    Quote Originally Posted by fred View Post
    If they are there, they are meant to be used. What did you get? And where did you get them from?
    What I'm referring to is in the pictures I have attached that show the check valve in one of the elbows

  5. #5
    Join Date
    Apr 2018
    Location
    Tioga county, Pennsylvania
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    14

    Default

    Trying to blow the picture up, doesnt it say "OR" checkvalve

  6. #6
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    Feb 2016
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    N.E. OH, atwater
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    Default

    Quote Originally Posted by Muddy Bottoms View Post
    Trying to blow the picture up, doesnt it say "OR" checkvalve
    yeah "or" which makes no sense because the elbow that they come with has a check valve built into it

  7. #7
    Join Date
    Feb 2017
    Location
    NY
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    The check valve with the pink ring around it is really only used for domestic water applications. When the RO is used to make water in a pressurized tank, it stops the tank from draining back through the RO when the booster pump shuts off (or supply water turns off). You can put it on either outlet, but it isn't necessary. Do not put it on the inlet.

  8. #8
    Join Date
    Feb 2016
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    N.E. OH, atwater
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    I'm just making sure by using it in my sap ro system that it won't create an issue ( I'm using the fittings that came with the membranes so one will have a check valve...)

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