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Thread: green machine

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    green machine

    Breaker popped while on vacation, assume cause of storm. Swg and pump shutoff for 3 days. Thought my levels should have sustained that long but oh well green algae now.
    Calc says fc should be 5 target 7 and shock 24. My cya is 60 ph 7.9. In order to shock to 24 I'm supposed to add 379 Oz of bleach. Once I add I come back in hour and test for fc? Using Taylor k2006 test I registered fc 40ppm does that make sense?
    Intex 18x48/2650 Sand/56601E SWG

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    Texas Splash's Avatar
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    Re: green machine

    I was not able to confirm your pool gallon size to validate against the Poolmath calculator. But a SLAM FC of 24 for yoru CYA (60) is correct. So I would think either something happened with your FC test or your pool volume may have been incorrect on the calculator? Of course I don't know if your FC was actually zero upon returning from vacation. Probably was, but ....
    Pat (a.k.a. Texas Splash) ~ My Pool: Viking Fiberglass; 17,888 Gal; Waterway Supreme 2-sp/2-hp pump; Hayward Ctg filter; TF-100 w/ Speed Stir
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    Re: green machine

    Calc says 7600 gallons

    Intex 18x48/2650 Sand/56601E SWG

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    Re: green machine

    If 40ppm is true do I just wait longer for the chlorine to attack the algae?

    Intex 18x48/2650 Sand/56601E SWG

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    Re: green machine

    Quote Originally Posted by Dtmos01 View Post
    Calc says 7600 gallons

    Sent from my SCH-I545 using Tapatalk
    An 18' X 48" Intex filled to 42" is 6700 gallons. I find that for my 18' X 48" ultra frame 6600 gallons in pool math works out perfect for me.

    Using 6700 gallons in pool math, 379oz of 8.25% will raise FC by 38ppm.

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    Intex 18' X 48" Ultra Frame AGP 6700 gallons | Two Intex CS8110 SWG's | Hayward Pro Series 21" Sandfilter | Hayward 1.5HP Power Flo Matrix pump | Hayward Thru-wall Skimmer | Wanda the Whale | 72 sq ft of Sungrabber Solar Panels with Hayward GLC-2P-A | Taylor K2006 Test Kit, Sample Sizer & Speed Stir | Click Here To Become a TFP Supporter!

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    Texas Splash's Avatar
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    Re: green machine

    With 7,600 gal pool, the calculator gave me 2 gallons & 2 cups (270 oz) to get from a SLAM FC of zero to 24. That's based on the CYA of 60. So I would keep the FC at 24 or slightly higher from this point forward. If it's too high right now, you can let it sink lower. It won't take long.

    If your volume is actually lower as suggested above (i.e. 6,700), then you would need 1 Gal & 3 qrts (238 oz) to go from zero to an FC of 24.
    Pat (a.k.a. Texas Splash) ~ My Pool: Viking Fiberglass; 17,888 Gal; Waterway Supreme 2-sp/2-hp pump; Hayward Ctg filter; TF-100 w/ Speed Stir
    Vital Links: POOL SCHOOL, RECOMMENDED LEVELS, RECOMMENDED CHEMICALS, Poolmath Calculator, SLAM, Chlorine/CYA CHART.
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    Re: green machine

    Even with 6600 shock of 24 is 329oz. I'm at 40ppm according to test. I'll wait 1 hour and retest

    Intex 18x48/2650 Sand/56601E SWG

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    Texas Splash's Avatar
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    Re: green machine

    Just a thought next time you're in the calculator ... make sure you are selecting the correct bleach percentage. I've been using the standard 8.25% from the grocery store. If you were using 6%, it would say to add more.
    Pat (a.k.a. Texas Splash) ~ My Pool: Viking Fiberglass; 17,888 Gal; Waterway Supreme 2-sp/2-hp pump; Hayward Ctg filter; TF-100 w/ Speed Stir
    Vital Links: POOL SCHOOL, RECOMMENDED LEVELS, RECOMMENDED CHEMICALS, Poolmath Calculator, SLAM, Chlorine/CYA CHART.
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    Re: green machine

    I got it at 8.25

    Intex 18x48/2650 Sand/56601E SWG

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    Piolin's Avatar
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    Re: green machine

    Don't forget to lower your pH
    8,400 gal Intex, 3K GPH pump, 16" sand filter, SWG CG-28669, TF100 test kit, speed stir, K-1766 Taylor salt test.

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    Re: green machine

    Got it

    Intex 18x48/2650 Sand/56601E SWG

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    Re: green machine

    2-3 hours went from 40ppm to 22ppm!

    Intex 18x48/2650 Sand/56601E SWG

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    Re: green machine

    Still holding at 24 and pool is clearer. Slight milky white but the end is near! Just when it is starting to get warm!

    Intex 18x48/2650 Sand/56601E SWG

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    Casey's Avatar
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    Re: green machine

    Don't forget to brush your pool. It'll also help your filter catch the dead algae floating in the pool.
    I'd bet you my bikini you'll never get TFP water from a pool store!

    24' Sharkline Venture De Filter

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    Re: green machine

    Thx been brushing twice a day it looks clear this morning!

    Intex 18x48/2650 Sand/56601E SWG

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