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Thread: Pool maintainance

  1. Back To Top    #1

    Join Date
    Jul 2014

    Pool maintainance

    Need advise if its safe:
    Have had pool open 3 weeks have been able to keep water clear only with Aqua chem plus chlorine tabs and a bag of 1 lb shock same brand every other day.
    Water tested :Alk 80,ph 6.4,free clo -0-,hrd 50,cya 0.

    Pool details:Rectangle 16x36, 3ft to 10 ft. aprox 30,000 gallons. vinyl, Hayward sand filter. Water looks great.

    Do i really need to add other chemicals to pool. Please advise.

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

    Re: Pool maintainance

    Welcome to TFP!

    Your PH is way to low. Low PH can damage the pool. You should raise PH to at least 7.5.

    Your CYA is also too low, which is causing you to lose all of your chlorine to sunlight each sunny day. If you are going to continue to use chlorine tablets you only want to raise CYA a little, as the tablets also contain CYA. If you are going to stop using the tablets, which I recommend, you want to raise CYA to around 40.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
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  3. Back To Top    #3
    Isaac-1's Avatar
    Join Date
    May 2010
    SW Louisiana

    Re: Pool maintainance

    I would have to suspect those test results, but we do need some clarification here on what you have been using, the tablets are almost certainly trichlor, however the powder could be dichlor, trichlor or cal-hypo. I know Aqua Chem sells similar sounding name "shock products" that are made from both dichlor and trichlor, I am not sure about cal-hypo though. Since both trichlor and dichlor add FC and CYA to the water.
    Indoor 20x40 35,000 gallon vinyl pool with 1.5 HP 2 speed Jandy FloPro pump, Hayward EC75 Perflex DE filter, 11 4x12 Techno-Solis solar panels w/ Aquasolar controller, Aquabot Turbo T Robot Cleaner. Also LMI metering chlorine dispenser pump and HotSpring Jetsetter
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