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Thread: Fittings question

  1. #1
    Member Frydaze1's Avatar
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    Fittings question

    I'm trying to finish up the second arm of my system, and I'm doing it a bit
    differently from the first. But I'm stuck on how to proceed from here.

    I need to get water from the 1/2" fitting of the pump on my sump tank, into
    some pvc (preferably 2") that will run along the wall of the greenhouse.
    From that 2" pipe will be T's that run into valves for each of the growbeds.
    I'll be running constant-flow and some rafts over there, and I really want to
    control the flow to each bed individually.

    I *could* screw some pvc directly into the pump outlet, but there are an
    awful lot of corners to take to where the long 2" pipe needs to be. I'd much
    prefer to use 1/2" black hydroponic hose to get over there. But I'm having
    trouble figuring out how to attach the hose to the pipe.

    Right now I've got the hose Y'd off, with one end stuck in an upturned end of
    the pipe, and the other end (with a valve) pouring back into the FT. I did
    the Y and valve because otherwise the water volume was too high and was
    overwhelming the 2" pipe and backing up, so the Y lets me bypass some of the
    water. I believe if it were actually connected, instead of just stuffed in
    there, the pvc would deal with the pressure the same way the hose does: just
    push it through. When I hook up the other rafts and beds, I'm really going
    to need all of that water over there, so the Y needs to go away and the
    volume needs to be accepted by the pvc.

    Which is just a very long-winded explanation of what is probably a simple
    question: how do I firmly connect hose to pvc? (Obviously once I connect it
    I can use adapters to get up to the 2" pipe. I just can't find a hose to pvc
    adapter that isn't for garden hoses. When I look at the hydroponic sites
    I've found, I can't find anything pvc related at all.)

    Actually, now that I think about it, I only had the 2" to deal with the low pressure volume I needed. Once it's all fitted properly, I can just use 1/2" all the way through. But still, I need to connect the hose to the pvc.

    TIA for any help, or links to sites with the fittings, or better suggestions of how to do it!

  2. #2
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    Re: Fittings question

    not sure if this is of any use, but the fittings on this page may be what you are looking for. They would require you to put a 2" stop on the end of your 2" pipe and treat it like a tank wall. the hose should fit over but I'd use a clip to keep it in place.
    13mm outlet

  3. #3
    Member Frydaze1's Avatar
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    Re: Fittings question

    Ah! Yes, I could certainly treat a cap as a wall. Thanks!

  4. #4
    Member cedarswamp's Avatar
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    Re: Fittings question

    To hook hydro hose to pvc use a barb x male adapter with a stainless steel hose clamp and a female pvc adapter. Home depot keeps the barb adapters in with the lawn sprinkler stuff. I did this just yesterday to run a line to 2 new beds.

  5. #5
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    Re: Fittings question

    this may be another option, here gets most diameter hose to a 1.5" pipe.

  6. #6
    Member Frydaze1's Avatar
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    Re: Fittings question

    Excellent. Thanks for all the great info, folks!

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