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Thread: Pumps and drains flows

  1. Back To Top    #1

    Join Date
    Apr 2014
    Sugar Land, Texas, United States

    Pumps and drains flows

    Hi expert,
    I've my pool for about 5 years now and now I just start learning my way around my pool. I just finished my chemistry course now I'm heading to the pool parts. My jacuzzi is flows to my pool so the water are being flow in/out from the pool. I have a few questions
    1. What is the vac alert that goes to the jacuzzi? It seem to always at 0. There's also a red knob, out sure what it's for. I am suspecting it might be the pump for the jacuzzi.

    2. If I open the water release (backwash), is that means the water does not go into the filter?

    3. Since I'm not using the side vacuum, I only turn the vacuum for the drainage, is that normal?

    Sent from my Nexus 7 2013 using Tapatalk
    Inground Plaster Pool, Cartridge Filter, Dolphin PRIMALX3, Hayward H400 Heater, Hayward Pump SPX3220X25Z2PE, 17500 Gallons with Spill Over Spa, Non-SWG, Sugar Land (Houston), TX 77478 USA

  2. Back To Top    #2
    JasonLion's Avatar
    Join Date
    May 2007
    Silver Spring, MD

    Re: Pumps and drains flows

    The vac alert prevents people from getting trapped against the drain by the pump suction. If it detects unusual suction levels, it will let air into the system, breaking the suction and allowing who/whatever is trapped at the drain to get away.

    I don't think you mean backwashing. Backwashing runs water backwards through the filter, to wash any dirt trapped by the filter out to waste, instead of back into the pool. This is not done with a cartridge filter, only with sand and DE filters. So I am guessing you are using the wrong word here.

    Pools with cartridge filters sometimes have a valve that allows you to divert water to waste. Usually this is before the filter, though I can't tell for sure from your photo. This is handy for draining excess water from the pool.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
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