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Thread: Partial pool drain

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    AV8TOR's Avatar
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    Partial pool drain

    Soon I plan on doing a 50% pool drain to get my CYA down (everything else is right on). It seems pretty straight forward but is there anything of concern I should watch out for? What about the filter, obviously it will be off but will it need re-primed before starting it again?
    16,000 gal IG Double Roman Plaster Pool (16yrs - plaster redone 2014)
    Pentair FNS-48 DE filter with WhisperFlo 2HP single speed pump
    Polaris 280 robot
    BBB all the way and tested with a TF100 kit
    Pool Calc user

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    Mod Squad JohnT's Avatar
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    Re: Partial pool drain

    Use the pool pump to get down to the bottom of the skimmers, then if you have a main drain and can shut-off the skimmers, keep going until you lose prime. You won't get to halfway without an external pump with most pool systems.
    TFP Moderator
    20K Gallon 20X36 Vinyl Inground
    Hayward S244T Sand Filter with 1HP Whisperflo Pump. Liquidator C-201 and Solar Heat

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    AV8TOR's Avatar
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    Re: Partial pool drain

    I have a 2,000 gph separate pump that I plan on using, sorry I should have mentioned that.
    16,000 gal IG Double Roman Plaster Pool (16yrs - plaster redone 2014)
    Pentair FNS-48 DE filter with WhisperFlo 2HP single speed pump
    Polaris 280 robot
    BBB all the way and tested with a TF100 kit
    Pool Calc user

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    sammm's Avatar
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    Re: Partial pool drain

    Make sure you have enough hose on your sump-pump to get the water away from your house and your downslope neighbors (don't ask how I know :P )
    WetEdge Satin Matrix, 16K gallon, Pentair NSP-60 DE filter, Pac Fab Challenger, 2HP pump, BBB, Polaris 360

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    Re: Partial pool drain

    Some areas have restrictions about draining (and backwashing for that matter).
    Where I am, I have to drain into the sewer, not the street or ground.
    (But I can backwash onto the ground, as it's a relatively small amount of water.)
    --paulr
    BBB "Intermediate Swimmer"
    IG plaster pool 18.5K gal, Hayward Pro-Grid DE filter, 3/4 HP Hydramax II; Polaris 380, 3/4 HP booster
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    AV8TOR's Avatar
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    Re: Partial pool drain

    Quote Originally Posted by PaulR
    Some areas have restrictions about draining (and backwashing for that matter).
    Where I am, I have to drain into the sewer, not the street or ground.
    (But I can backwash onto the ground, as it's a relatively small amount of water.)
    --paulr
    That is the same in my area. I have French drains that I believe are connected to the sewer because there are no drains to the curb/street so that is where I plan on draining it.
    16,000 gal IG Double Roman Plaster Pool (16yrs - plaster redone 2014)
    Pentair FNS-48 DE filter with WhisperFlo 2HP single speed pump
    Polaris 280 robot
    BBB all the way and tested with a TF100 kit
    Pool Calc user

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