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Thread: Yet another RO unit thread

  1. #49
    Kyle's Avatar
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    UPDATE! And good news!

    I managed to get a valve here in town. Mildly confused, though. Does it matter which side, vertically speaking, goes where? All the valve says on it is "In" and "Out." Does it matter which "Out" goes into the membrane and which goes into the permeate pump?

    EDIT: In inspecting it further, one of the channels goes right through (as in, I can see right through the valve from one "In" port to the corresponding "Out" port) and the other does not. So I'm assuming it DOES matter which goes where.

  2. #50
    Av8tor1's Avatar
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    yeppers it matters, brb

    here ya go, my schematic has the ASOV labeled:




    Now since yours includes the PP, also look at the pic of my systesm... specifically the blue and black lines

    permeate outlet of membrane to permeate pump (Blue)
    Permeate pump to ASOV (Blue)
    Prefilter outlet to ASOV inlet (Black)
    ASOV outlet to membrane inlet (black)

    Av
    Last edited by Av8tor1; 05-22-2011 at 06:03 AM.

  3. #51
    Plant Ninja Smitty's Avatar
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    That diagram is wicked! I am one step away from taking the plunge to R/O. I find it a necessity now that I have salt water tanks to go along with my CP addiction.

    Some good information Butch!

    Previously known as: NY Plant Nerd

  4. #52
    Kyle's Avatar
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    Haha, that's funny, I was just studying that diagram last night. Didn't realize you had it labeled such that the ASOV was actually labeled according to position. Excellent!

    Perhaps, Butch, you should make a new thread with all sorts of RO/DI info and it can be pinned since so many people ask questions about it and so many find your diagrams and help to be so valuable. I vote for pinnage if you do make one! XD

  5. #53
    Av8tor1's Avatar
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    ummm so r u ro'in?

    check brine rate.... its a good metric to judge if the system is running like it should

    run the waste water to a jug and compare the amount of waste water to 1 cup of permeate (disable captive air tank during test)

    should be somewhere around 4:1

  6. #54
    Kyle's Avatar
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    Nope, not until I get those replacement parts from the seller.

    I did have a question, though. The seller sent it all assembled with the T-connector before the DI stage. Shouldn't it be AFTER the DI stage but BEFORE the carbon post filter? Also, there's no check valve (ugh). Do you happen to know if that's one of the fittings Lowes would carry?

  7. #55
    Av8tor1's Avatar
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    lowes wont have the low pressure check valve... sorry mate, that will be a speciality item for RO

    sheesh, how did they ever expect it to work.... no asov no cv?

    ugh,

    ummm what is the tee connector connecting

  8. #56
    Kyle's Avatar
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    Ughhhhh. Who knows if I'll be able to find one... This has been a nightmare.

    The T is connected to the permeate out from the pump and to the input side of the DI stage. Nothing was plugged into the third port, but presumably that's where I was supposed to put the tank.

    EDIT: I might have mistook the check valve for a flow restrictor. It's on the brine out from the membrane, though... isn't it supposed to be on the permeate out?

    Maybe I should just take a bunch of pictures...

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