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Thread: Drastic CYA loss again

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    mepcards's Avatar
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    Drastic CYA loss again

    I posted last month on the 13th of march, that my CYA was below 30. Now when saying this, I could clearly see the black dot when tube was filled. I also did testing with back to the sun, and ran the test 3 times with the same results. The next day I applied stabilizer with a sock dipped into the pool by the return jet, and by the following day, my test was reading at 50, just where I wanted it. I too ran that test 3 times, and all gave me the reading of 50....Now april 8th, not even a month has gone by, and my CYA is back below 30. Note: no swimming has been done, so no loss of water with splashing. No leaks what so ever, for I monitor my water level daily. Only water loss is by weekly backwash, and when it rained hard, I had to release water, for above the max crest line on skimmer. So if I assume by backwashing and rain water release, the most is about 4" of total water. Now before I go get more stabilizer, I do still have full bucket of pucks that I never used after adopting the BBB method. How many pucks would suggest, and can I still add bleach with a floating puck dispenser? On a side note, ill be cleaning my wedding cake stairs today, for I have removed them for the winter months...Its getting closer to opening day ppl !!!!!!!!!!!!!
    24x16 doughboy Summerville..22" Waterway "sand" 1.5 HP 2sp motor..Misty Falls liner, and wedding cake stairs..

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    Mod Squad woodyp's Avatar
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    Re: Drastic CYA loss again

    4 weeks------4 backwashes-----drained water due to rain. That'll do it! Why are you backwashing weekly?
    16x32x52" Steel Cornelius Miramar AGP Vinyl liner 13,100 gal. Buried 2 ft.
    2 Speed Hayward Power-Flo Matrix 85 g.p.m. 22" 250lb. sand filter hard plumbed
    Pool Rover Jr., Pool Blaster Max, Diver Dave TF100 Test Kit/Speed Stir
    Margaritaville Frozen Concoction Maker, Liqour Chiller, & Drink Mixer & Party Tub----Collect 'um all!

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    mepcards's Avatar
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    Re: Drastic CYA loss again

    I thought it would be a good habit to backwash after every 2nd vaccum....It dosent take long for water to show clear in the glass when backwashing, so it wasn't like minutes of backwashing....Ill slow down with the backwasing..lol....
    24x16 doughboy Summerville..22" Waterway "sand" 1.5 HP 2sp motor..Misty Falls liner, and wedding cake stairs..

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    Re: Drastic CYA loss again

    Rain will add to the problem. My salt level dropped 1500ppm to 1/2 of previous level over the winter due to rainwater dilution
    18,000 gunite pool/spa combo. Pebble tec, iaqualink rs8, cl580 filter, aquapure 1400, 400k btu lx heater, 10 solar panels, jandy 1hp, 1 1/2hp, and 2hp stealth pumps for circ, spa, waterfall

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    Mod Squad woodyp's Avatar
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    Re: Drastic CYA loss again

    Sand filters actually clean a little better a little dirty. No need to backwash until your dirty pressure rises 25% over your clean pressure. Take a break!

    Note to OP: Adjusted my pressure rise % from 10 to 25. My bad!@
    16x32x52" Steel Cornelius Miramar AGP Vinyl liner 13,100 gal. Buried 2 ft.
    2 Speed Hayward Power-Flo Matrix 85 g.p.m. 22" 250lb. sand filter hard plumbed
    Pool Rover Jr., Pool Blaster Max, Diver Dave TF100 Test Kit/Speed Stir
    Margaritaville Frozen Concoction Maker, Liqour Chiller, & Drink Mixer & Party Tub----Collect 'um all!

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    mepcards's Avatar
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    Re: Drastic CYA loss again

    Ok will do....Fixing to add stabilizer to raise to 50......Thanks guys
    24x16 doughboy Summerville..22" Waterway "sand" 1.5 HP 2sp motor..Misty Falls liner, and wedding cake stairs..

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