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Thread: Sealing Main Drain before changing MD valve

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    Join Date
    Jul 2013
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    Sealing Main Drain before changing MD valve

    Hi!

    I'm changing out 3 valves (Main Drain, Skimmer & Spa) valves at the Pumping Station.

    I need help/suggestions on covering/sealing the Main Drain so I can change the valve out with minor or no loss of water.

    Appreciate any help!

    JV
    Pool: 6,500gal Plaster (Pool & Spa), Capsule Shape, 25ft x 8ft, 3ft to 5ft depth
    Spa: 6ft diameter, 3ft deep
    Equipment: Hayward DE3620 Filter, EcoStar VS Pump, Aqua Plus Controls & SWG

  2. Back To Top    #2
    Mod Squad jblizzle's Avatar
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    Re: Sealing Main Drain before changing MD valve

    Just to confirm. Are the valves / pipes to be replaced below water level? If not, then the water will not leak out.
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
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    Mod Squad Bama Rambler's Avatar
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    Re: Sealing Main Drain before changing MD valve

    Is your equipment below the waterline? most inground pools the equip is above the water and therefore you don't need to worry about plugging the plumbing.
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/¼hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
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  4. Back To Top    #4

    Join Date
    Jul 2013
    Location
    Puerto Rico
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    Re: Sealing Main Drain before changing MD valve

    They're above water level.

    Thanks!
    Pool: 6,500gal Plaster (Pool & Spa), Capsule Shape, 25ft x 8ft, 3ft to 5ft depth
    Spa: 6ft diameter, 3ft deep
    Equipment: Hayward DE3620 Filter, EcoStar VS Pump, Aqua Plus Controls & SWG

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