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Thread: Suction/Return plumbing "High" so it drains for winter?

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    Suction/Return plumbing "High" so it drains for winter?

    We're in the build on a DIY 18x36 IG vinyl. I'm starting to run the plumbing for the suction and return lines - using 2" and 1.5" Sch40 pvc.

    I was going to run all of the lines back to the equipment pad just overtop of the bond beam with about 2" of dirt on the concrete to protect the pipes from any wear from the rough concrete surface.

    But, while I was setting up for this I started thinking that it might be better for the horizontal runs of pipe to be raised up as high as I can get them (but still be under the concrete decking). Basically a vertical drop to "just underground" from the equipment pad then run horizontally to directly above the the return fitting, then down into a 90 and out the fitting.

    The thought/theory behind this is that when the pool water level is lowered for the off season (Canadian Winters) that the pipes would be self draining and therefore free from ice damage. especially if the return fittings were above the level to which the water is drained...

    The only risk I can see with running the pipes high is the potential for settling of the backfill and stressing the pipes... obviously if they're right over the 8" bond beam then they won't settle too far...

    Thoughts - Have I been spending too much time in the sun?

    Thx - John
    Assembly stage of:
    18x36 DIY IG - SWG - Pro-Logic P4 - Hayward Universal 12V LED - ClearDeck Inground Solar Cover System - 2 Skimmers, 5 Returns + 2 Step Returns - 400BTU Hayward NG Heater - 1.5HP Hayward TriStar 2sp Pump - 30" Hayward Sand Filter - 280sq/ft Enersol Solar Heating - Solid Safety Cover with mesh drains - 30mil TideWater Liner - - TF100 - 20'x30' Pool House/Dog House :)

    New Lowell, Ontario, Canada.

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    Join Date
    May 2010
    union beach n.j.

    Re: Suction/Return plumbing "High" so it drains for winter?

    so you basically just want to NOT have to vac/blow the lines out when closing? but wouldnt your skimmer lines still have to be cleared as they will not drain on their own, and i would still be skeptical of water in the lines, just trusting that they have drained would not cut it, for me anyway.
    20x40 IG vinyl, grecian style, 32.5k gal, hayward ec75a perflex d.e. hayward super pump 1 hp 80 gpm, 8 hr 38k gal turnaround

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    In the Industry
    duraleigh's Avatar
    Join Date
    Apr 2007
    Sebring, Florida

    Re: Suction/Return plumbing "High" so it drains for winter?

    I am not too experienced with winterizing but I would want ALL my pipes deep in the ground. Less chance of damage from surface movement. Easy enough to blow them out in just a minute or two when you winterize
    Dave S. - Forum owner
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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