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Thread: need to add cya

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    need to add cya

    ok my pool is just about ready. my cya is well below 30. 30 is the lowest the test goes. i know i need to add some though bc my chlorine burns off way too fast. well i read in pool school to add cya in a sock thru the skimmer. but read elsewhere to put the sock in front of the return. which is best?
    5800 gal AG Cartridge Filter that came with pool Installed on 6/21/13 SWG

  2. Back To Top    #2
    linen's Avatar
    Join Date
    Jul 2010
    Twin Cities, MN

    Re: need to add cya

    I am preferential to putting in front of the return, since if you have to clean your filter (especially when you are clearing a pool), then you will not lose cya.
    TFP Expert who uses Pool School and my TF100 test kit along with PoolMath for my: Round 11K gallon AGP with deep end, 20" sand filter, Matrix 1hp 2spd, 6 2ftX20ft solar panels (and solar cover!), Intex SWCG (copper bars disconnected) and a Rubadub hot tub (chlorine). The SLAM process is not finished until: 1. CC < 0.5 ppm, 2. An OCLT < 1.0 ppm and, 3. The water is crystal clear.

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    Isaac-1's Avatar
    Join Date
    May 2010
    SW Louisiana

    Re: need to add cya

    A sock in the skimmer is fine as long as the pump runs full time, and it does not clog (get sucked down) the pipe. Hanging in front of the return so it does not touch the edge is probably a bit safer for most people, but may dissolve a little slower.
    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
    I use and endorse TFtestKits TF-100 from
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  4. Back To Top    #4

    Re: need to add cya

    ah that makes sense. i am changing my filter on almost a daily basis right now. we had lots of rust in the water from our well and until we get most of it out we change our filter often. thanks for the help!
    5800 gal AG Cartridge Filter that came with pool Installed on 6/21/13 SWG

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