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Thread: Dc pump ???

  1. #1
    Join Date
    Jan 2016
    Location
    durham ontario Canada
    Posts
    34

    Default Dc pump ???

    I want to make up a smaller ro unit for this upcoming syrup season. My game plan is to use 3- 400gpd membranes for my system. Question ?I have very limited 120 vac but have access to lots of large dc batteries ( 4d - 8d ) , has anyone out there ever built a ro system that runs off a battery powered booster pump?????


    Thanks for any advice given
    2014 100 taps 65 l of syurp
    2015 50 taps 20 l of syurp
    2016 150 taps, 160 l of syurp made
    2017 plan is 150 taps , and will see what happens
    2018 200 tap , 25 on my first 3/16 gravity system, 250 of syrup
    2019 250 taps , all on 3/16 with 12 volt diagram pump ( 300 l of syrup)
    2020 same 250 taps , time to make a small ro unit

  2. #2
    Join Date
    Jan 2006
    Location
    Oneida NY
    Posts
    9,990

    Default

    A 12V DC diaphragm pump might work. You will need enough battery and the right pump. First determin what pressure you need to run at, then build it to fit.
    Another way might be to run a generator and a AC pump, if you study that route make sure the genny can handle the start surge.
    Dave Klish about 1320 taps in '15, doing fewer each year, about 450 planned for 2020 (and after?)
    2012 Mahindra 36 HP 4x4/ loader/cab/heat/AC:-)
    3x8 raised flue evaporator
    250 GPH converted to electric, RO by Ray Gingerich
    6.32 KW solar system, 1.48KW is battery backed up, all net metered
    http://s1041.photobucket.com/albums/...anssugarhouse/
    website: www.cnymaple.com

  3. #3
    Join Date
    Jan 2016
    Location
    durham ontario Canada
    Posts
    34

    Default

    I see there are 12 diaphragm pumps that are rated for 150 psi ? Is that enough pressure to run a ro unit ??? And next big question Is just as important, how much flow would a pump have to be rated for to run 3 - 400 gpd membranes
    2014 100 taps 65 l of syurp
    2015 50 taps 20 l of syurp
    2016 150 taps, 160 l of syurp made
    2017 plan is 150 taps , and will see what happens
    2018 200 tap , 25 on my first 3/16 gravity system, 250 of syrup
    2019 250 taps , all on 3/16 with 12 volt diagram pump ( 300 l of syrup)
    2020 same 250 taps , time to make a small ro unit

  4. #4
    Join Date
    Mar 2013
    Location
    Campbellford, on
    Posts
    643

    Default Dc booster pumps

    The booster pumps most people use on these style of RO’s, like the 8800, are 24v dc anyways. Just connect 2 12v batteries in series and your good to go. The first RO I built was this style and I initially ordered the wrong power supply so this is what I did until I got the correct one.
    Last edited by Clinkis; 11-27-2019 at 07:08 AM.
    Maple Rock Farm
    www.Maplerockfarm.ca
    380 taps on Vacuum
    18”x60” Lapierre propane evaporator with Smokey Lake auto draw off
    Homemade 3 post RO with MES membranes
    Ford TS110 tractor sap hauler

  5. #5
    Join Date
    Jan 2016
    Location
    durham ontario Canada
    Posts
    34

    Default

    A friend of mine sent me a pic of his booster pump and it showed on the data plate that yes the pump voltage is 24 volt , but it was showing it was 24 volt ac not dc ???
    2014 100 taps 65 l of syurp
    2015 50 taps 20 l of syurp
    2016 150 taps, 160 l of syurp made
    2017 plan is 150 taps , and will see what happens
    2018 200 tap , 25 on my first 3/16 gravity system, 250 of syrup
    2019 250 taps , all on 3/16 with 12 volt diagram pump ( 300 l of syrup)
    2020 same 250 taps , time to make a small ro unit

  6. #6
    Join Date
    Mar 2013
    Location
    Campbellford, on
    Posts
    643

    Default

    Both AC and DC are available.....

    https://www.cwwltd.com/aquatec-8800-...booster-pumps/
    Maple Rock Farm
    www.Maplerockfarm.ca
    380 taps on Vacuum
    18”x60” Lapierre propane evaporator with Smokey Lake auto draw off
    Homemade 3 post RO with MES membranes
    Ford TS110 tractor sap hauler

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