PLUMBING: Pool Return Valve

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Thoughts / Solutions? Pool guy installed a new pump (Hayward SP3400VSP EcoStar VS Variable-Speed Pool Pump Energy Star Certified), and Return Valve. The pool guy set the Return Valve where the pipe for backwash and emptying the pool is facing the BACK of the shed! so the pipe needs to turn water 180 degrees toward the woods. My concerns are: 1) the PVC sleeve he glued on is a SMOOTH female side, requiring PVC glue and I'm not clear that will withstand the pressure of the pump pushing water out. 2) Can that turn be a 180 degrees turn or should at the VERY least be two 90 degree turns?
q plumbing pool return valve
NOTE the PVC sleeve the pool guy put in is a smooth female type.... can that handle a 180 degree turn with PVC Glue to another smooth male pipe? If not, how can this GLUED in piece be removed to put in a threaded sleeve that I would have THOUGHT should have been used??
q plumbing pool return valve
so Valve with Handle at top of this picture...... note it points at the shed, and would connect to the pre-laid pipe that is buried to the woods. (Worked GREAT with previous pump and valve, BUT the previous valve was pointed to the SIDE so it made it ONLY a 90 degree return.
  6 answers
  • William William on Apr 19, 2017
    A 180 degree turn would be to sharp of a turn which may cause back pressure or cavitating. You can use pieces of pvc pipe and 90 degree elbows to make a wider 180 degree turn. I would say 12" pieces of pipe would be sufficient.

    • JimG JimG on Apr 19, 2017
      ok, thanks.. I was thinking similar.... two 90 degrees - hoping that might work.. * any thoughts on whether using PVC pipe glue in that PVC sleeve he glued in, will be strong enough, or that sleeve (with smooth inside) needs to be replaced with a threaded one?? if so, then how to get a glued PVC pipe sleeve out ??

  • William William on Apr 19, 2017
    PVC glue will be strong enough under pressure. Just make sure you use a PVC cleaner (which is purple) then use the PVC glue.

  • Jerry Martin Jerry Martin on Apr 20, 2017
    I would use two 45 degree elbows instead of one 90 degree elbow for each turn. this will remove some of the harshness of the turn and reduce the amount of back-pressure when you are flushing.

  • Kirt Steeves Kirt Steeves on Apr 20, 2017
    Doesn't matter if you use 1 180-degree or 2 90-degree or 4 45-degree elbows. The cumulative effect will be the same. A wider diameter elbow can reduce the PSI in the turn. A better solution might be to disassemble at the pump and rotate the discharge to begin with.

  • A A on Apr 21, 2017
    Have you tried using a back wash hose?

    • JimG JimG on Apr 23, 2017
      I use one, though the issue is that has to attach to PVC, and that pipe is facing direct opposite direction it needs to go. (direct at shed)

  • Rob Rob on Jun 20, 2017
    You could try flexible pipe used in hot tub applications. You could possibly use a stainless band-clamp with the flex as well. My backwash has a 90 deg bend with a high-flow 1HP pump with no adverse effects.

    • JimG JimG on Jun 21, 2017
      Thank you Rob. ( I used a Flex pipe when I had the 1" PVC pipes, but with the 2" PVC, I couldn't find 2" Flex pipe.) I did work a solution seems to be working well.