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Thread: plumbing question

  1. #1
    Fry
    Join Date
    May 2011
    Posts
    6

    plumbing question

    installing aqua art retro drain.will be teeing off retro drain to run plumbing around sides of pond with lengths of pipe sticking up with 3" screens attached to them to draw water from different levels in the pond.pond is 12x16x4 with 18" above ground.plumbing will come up over and down to ground level 18"below water level thus creating a flooded flow to suction side of pump(es8500).now the real question is,on the suction side of the pump can I use schedule 40 dwv pvc or must I use schedule 40 pressure pvc on both sides?

  2. #2
    Oyagoi
    Join Date
    Oct 2006
    Location
    Forreston,IL
    Posts
    1,073
    coming up and over the wall and back down to ground will cause air to be trapped in the top part of the up and over.
    so will not be getting and water to pump or VERY VERY little.

    need to come through the wall or keep pipe level or going uphill to pump after coming over wall.
    will need self priming pump then

  3. #3
    Fry
    Join Date
    May 2011
    Posts
    6
    pump will be below water level with priming pot attached

  4. #4
    Oyagoi
    Join Date
    Oct 2006
    Location
    Forreston,IL
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    1,073
    but pipe is coming over top of pond like upside down u shape that part will be full of air and air will not be pulled through by the pump.

  5. #5
    Fry
    Join Date
    May 2011
    Posts
    6
    did same before with 1 1/2" flexible tubing no problems. see attachment same configuration but with es8500 pump.plumbing question-upover.jpgthank you for input on plumbing. but can I use dwv pvc on suction side
    Last edited by thatupsguy; 08-15-2011 at 07:53 PM. Reason: left word out

  6. #6
    Nisai Scrmnkg's Avatar
    Join Date
    Nov 2007
    Location
    Santa Rosa, Ca.
    Posts
    109
    To answer your question, yes the DWV fittings in the 3" & 4" size will be fine. For the 2" lines though, I prefer these, especially if your using any flex. PVC Fittings/ Sight Glass - Plumbing Parts

    As for the set up I wouldn't bother with the mid-level intakes unless they're on their own pump. Water will take the least path of resistance and make the BD less effective.

  7. #7
    Fry
    Join Date
    May 2011
    Posts
    6
    That is good to know.everybody locally says that you have to use pressure schd 40 pvc on both sides of pump(suction and pressure side).will be a whole lot cheaper using dwv pipe and fittings on suction side.

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