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Thread: 3 way valve sizing

  1. Back To Top    #1

    Join Date
    Apr 2016
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    Michigan city
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    3 way valve sizing

    I am installing a new 3 way valve on my father in law's pool and accidentally ordered a 2" to 2 1/2" instead of 1 1/2" to 2 " valve. His plumbing is all 1 1/2". Is it OK to reduce this down to fit his plumbing or should I send it back and get the 1 1/2".

  2. Back To Top    #2
    Mod Squad jblizzle's Avatar
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    May 2010
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    Re: 3 way valve sizing

    Welcome to TFP!!!

    Absolutely fine to use it! Using the larger valve just means you will have less head loss through the valve.

    Actually I would advice to use 2" plumbing when ever you are doing any plumbing for the same head loss reason.
    Jason, TFP Moderator
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  3. Back To Top    #3

    Join Date
    Apr 2016
    Location
    Michigan city
    Posts
    2

    Re: 3 way valve sizing

    Thanks for the quick response. I wish it was all 2" but it's an older pool with black poly.

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