Sizing UV water purifier

Discussion in 'General Plumbing Help' started by Mushhuskies, Mar 21, 2019.

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  1. Mar 21, 2019 #1

    Mushhuskies

    Mushhuskies

    Mushhuskies

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    Captain Cook, Hi
    Aloha, installing a UV water purifier after a sediment filter and carbon filter for whole house water use. I’m getting hung up on how to size the purifier in terms of gpm. I’ve tested my current pump and it outputs 10 gpm. In the future I hope to replace it with a grundfos that puts out 22 gpm. Do I size it to the the pump output or ?? I realize that by the time the flow goes thru the filters and twists and turns it’s probably much less but I don’t know the math to figure all that out. What is a reasonable expectation for gpm for a two person household.? We live on catchment so we are very frugal with our water use but still have all the mod cons of a normal house like dishwasher and washing machine, tho low consumption to be sure. Mahalo in advance for any input!
     
  2. Mar 22, 2019 #2

    frodo

    frodo

    frodo

    Just call me Macgyver Professional Supporting Member

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  3. Mar 22, 2019 #3

    Mushhuskies

    Mushhuskies

    Mushhuskies

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    Captain Cook, Hi
    Frodo, thanks for the info. There is actually quite a bit on that page that is useful.
     
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  4. Mar 22, 2019 #4

    Mushhuskies

    Mushhuskies

    Mushhuskies

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    Captain Cook, Hi
    I have since found that the rule of thumb for residential is 12 gpm. Larger households will probably need a larger capacity.
     

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