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Thread: RO design question

  1. #1
    Join Date
    Feb 2010
    Location
    Highgate VT
    Posts
    16

    Default RO design question

    I'm trying to breathe life into an old GE Osmonics system. The feed and pressure pumps were shot, so I'm starting with a clean slate. I'm setting it up to run two of the double membrane 4x40 vessels in parallel. I have a procon 11gpm@250 psi pressure pump and a pompco 1/2hp 20gpm pompco recirculation pump. Something like a H2O hobby, but a little bigger. My question involves where to locate the recirculation pump and where to draw concentrate. Should the recirculaion pump inlet be directly after the pressure pump and return between the two pumps or should the recirculation pump draw from the vessel outlet and return to the vessel inlet? I'm also thinking that I should draw concentrate after the recirculation pump outlet.
    Any thoughts on design would be appreciated.
    Also, the system came with 5 vessels. I would'nt mind selling a couple of them.
    Rich

  2. #2
    Join Date
    Mar 2011
    Location
    Potter County, PA
    Posts
    815

    Default

    What type of pump are you using for the recirculation?
    2008 4 buckets
    ~
    2016 1300 vac tubing
    18x24 sugar shack
    2x6 Grimm Lightning w/preheater on natural gas
    7" full bank press
    CDL 600 RO
    2000 Sonoma w/ 200gal tank
    2003 Duramax w/ 500 gal tank
    2 sap guzzling kids
    very patient wife!

    Same ol' addiction

  3. #3
    Join Date
    Feb 2010
    Location
    Highgate VT
    Posts
    16

    Default

    Pompco pump

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