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Thread: do i need a booster pump for my ro unit?

  1. #1
    Nelaker is offline Junior Member
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    Aug 2010
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    Default do i need a booster pump for my ro unit?

    i am looking at getting an ro unit and have read that a booster pump will decrease my waste and also speed up the refil times. .... dependant on water pressure. i run about 55psi on a private well. is this something i should consider? thanks

  2. #2
    Andy CWS is offline Moderator
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    Default

    A booster pump placed before the membrane can show much improvement in production. There are also delivery pumps that send water top the faucets with much great flow rate as well.

    These can be added later, so if your RO installation is done without one, and you are satisfied with the production, then you don't need to add one. The electric pumps produce higher pressure but cost more and make more noise.

    Here is an example of an RO with a booster pump.
    http://www.filtersfast.com/AquaFlo-E...ter-System.asp
    Last edited by Andy CWS; 08-19-2010 at 03:08 AM.

  3. #3
    Join Date
    Apr 2010
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    Smile

    First if you have already installed RO system and its running fine then you don't need to invest in pump but if the flow of water is very slow that it consuming so long time to make the water filter for just a jug then better you install booster pump.There is no much high impact of the pump on the functionality of RO system so not need to worry...

    Water Filtration
    Last edited by Andy CWS; 09-07-2010 at 04:43 AM.

  4. #4
    Nelaker is offline Junior Member
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    Default ratio

    but doesnt it help with the ratio of production? this is my main reason for looking into a pump.

  5. #5
    PuROMax is offline Junior Member
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    I will try to give you more tech data. I hope it is not to much but there are a few factors when finding out membrane production.

    Assuming you have 77 degree water with less than 500 ppm with a 50 gpd membrane use the below to calculate production for psi.

    membrane rated psi / production
    50 gpd / 65 psi = 0.769 gpp gallons per psi

    actual pressure is 55 psi, so.....
    55 x .769 = 42.307 gallons per day

    You also have to figure temperature
    for example a 50 gpd membrane will only produce about 25 gpd at 50 degrees.


    I would suggest to use a booster pump if you have the following conditions...

    less than 50 psi
    more that 500 ppm
    temperature under 50 degrees
    ora combanation of all 3

    Another example if you have a 50 gpd system at 50 degrees 1000 ppm tds and 50 psi.

    Projected outut without booster pump
    13.457 GPD

    Projected output with booster pump
    30.76 GPD

    I would say you most likely don't need a booster pump, but if you have money to burn it would not hurt.

  6. #6
    PuROMax is offline Junior Member
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    Oct 2010
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    If you let me know the following I can tell you what it really is projected to produce.

    1. Rated membrane with model number
    2. Water Temp
    3. Water TDS
    4. Operating pressure

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