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Thread: question on how to get from shock level to daily level

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    question on how to get from shock level to daily level

    I had a little algae and cloudy water so I shocked it using the tables I found here and now everything looks good and my FC is holding steady overnight and I have 0 CC. My question is do I just let my FC level drift down from the shock level (FC=20) to the daily CC level (FC=6)?
    pool was built in 5/11, in ground 37,000 gallon concrete/plaster pebble sheen finish. STA-RITE system 3 Cartridge filter 400sqft filtration area, .288 gpm/sqft, 115 gpm flow rate. also has a Nature 2 mineral sanitizer and a 1hp sta-rite pump

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    Join Date
    Mar 2007
    Location
    San Rafael, CA USA
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    12,082

    Re: question on how to get from shock level to daily level

    Yes, just let it drift down. That should happen faster if the pool is exposed to sunlight.
    16,000 gallon outdoor in-ground 16'x32' plaster pool; Pentair Intelliflo VF pump; Pentair IntelliTouch i9+3s control system; Jandy CL-340 square foot cartridge filter
    12 Fafco solar panels; Purex Triton PowerMax 250 natural gas heater (200,000 BTU/hr output); automatic electric pool safety cover; 4-wheel pressure-side "The Pool Cleaner"

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    y_not's Avatar
    Join Date
    Jul 2012
    Location
    Redmond, OR
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    1,086

    Re: question on how to get from shock level to daily level

    You don't say where you are, so unless your water is really cold Chem Geek is spot on. Well of course he is, he's our resident expert.
    But if your water is pretty cold, it can take a while.

    Took mine about 2-3 weeks to go from FC 12+ to 3ppm, with no cover and full sun, but some cloudy, partly cloudy days in there. It does get super cold at night here in the winter and the water goes down to the low 50's overnight and into the upper 50's, sometimes low 60's during the day.

    Aside from that extreme, it could easily happen in just a few days, give/take a day. Depending on your climate.

    I just looked at your other threads, sounds like you're really getting a handle on your pool with the BBB method.
    Can I ask how come you're shocking it again, since adopting the BBB method?

    And just to verify, an FC of 20ppm would be shock level for 50ppm CYA. I have seen you quote in your other posts 50-60ppm CYA. Have you dropped down to a good 50ppm since then, either through evaporation and filling or other means?
    Lastly, you passed all the testing criteria, save for your water clarity of which you don't mention. Is it crystal clear, like glass. Like the pool looks almost empty at night and/or during the day. Right?
    Thanks for reading... - Tony
    Da' Pool: Intex 15'x42" 3284gal AGP EasySet (Inflatable Ring) - (Summer 2014: 27' round EW /w 6.5' deep end @ 22,500gal)
    Pump & Cart Mod: 1000gph Cart. 5ft² - 2 nylons, 24/7 OP. Traps bugs/bits, lasts longer/cleans easier = Happier Pool Owner!!
    The Bible for a "Trouble Free Pool" life = PoolSchool, the BBB method a TF100 test kit(Recommend Kits Compared). - Cleaning a Sand Filter
    Water looks like GLASS, if yours doesn't...SLAM IT! Feels nice and never been happier!!! :D

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    Re: question on how to get from shock level to daily level

    We are in Houston, so not so cool, maybe 60's at night and 70-80's during days.. Had to shock due to being out of town and had turned on teh tablet chlorinator, but I guess not enough.. Got the CYA down by some additional draining and yes the water is very clear.

    Thanks for asking
    pool was built in 5/11, in ground 37,000 gallon concrete/plaster pebble sheen finish. STA-RITE system 3 Cartridge filter 400sqft filtration area, .288 gpm/sqft, 115 gpm flow rate. also has a Nature 2 mineral sanitizer and a 1hp sta-rite pump

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    jcowart's Avatar
    Join Date
    Jun 2012
    Location
    Labelle, TX
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    320

    Re: question on how to get from shock level to daily level

    Take notes as it comes down. You can learn a lot about your pool needs. I am in the Beaumont area right down the street. You will learn the average drop for a given day "temp, sun, clouds". Unless you need to leave it for a long time you could bring your FC up higher and it will naturally fall while your away. Then you can totally stay away from the pucks unless you need to bring your CYA up.
    17500 gallon Doughboy AGP, Hayward DE filter, waiting for the 1.5hp DB pump to go out.
    Learn to take the advice here and be trouble free or use the pool store's advice. "You can't do both and get very far"

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