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Thread: Small critter threw off my OCLT?

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    Triplejnj's Avatar
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    Small critter threw off my OCLT?

    So I've been SLAMming the past 3 days and it has been coming along very well. CC's are <.5, water crystal clear, OCLT 2 nights ago was 1.5ppm FC loss. After another day of maintaining yesterday I was about sure I'd be done. I ran the OCLT again last and this morning my FC measured 24.5, down from 26 last night. Again, 1.5ppm. But I did find a dead frog in the skimmer. Question is, could that throw off the OCLT? And should I keep maintaining? Or maybe let the FC drift down a little and go back to SLAM level this evening? 90+ today and the kids have been dying to swim.
    Tom
    16k freeform IG vinyl | Hayward 2hp pump, 300lb sand filter, 250k btu heater | AquaRite SWG | Installed October, 2014

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    needsajet's Avatar
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    Re: Small critter threw off my OCLT?

    The water is safe for swimming when:
    1. you can see the bottom everywhere in the pool (swimmer safety)
    2. pH is between 7.2 and 7.8
    3. FC is between minimum and shock level for your CYA level, per: Pool School - Chlorine / CYA Chart

    We like to keep our pools available for swimming!!!

    Tell 'em to bomb it!

    Your active chlorine level, even at shock level, is lower that any well-run indoor commercial or institutional pool with zero CYA. Of course, you must be reasonably sure of your CYA level, and recognize that the test has some error. I see your SLAMing at shock level of 28, so I assume your CYA is 70. Say it was 60 to be way on the safe side, swim at 24. All good. If you don't believe it, be the guinea pig, dive in yourself, swim underwater eyes open. You won't feel a thing.

    Just remove the frog, not a big deal and would have theoretically had an impact on FC, yep. Probably not much though.
    12k IG salt; glass beads in plaster; K-2006C, K-1766, CCL, and Aussie 4in1 (HTH); Pentair Eco800 1.2HP VS; Zodiac SWC 1.3 lb/day (25 g/hr); 25" filter recycled glass; OKU solar panels; 1/2 HP solar pump; Rebel (Warrior) pool cleaner; FlowViz; prior pool AG 10k | Read Before Posting to get the best possible advice | ... and this helped me a lot!: TFPC for Beginners

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    Texas Splash's Avatar
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    Re: Small critter threw off my OCLT?

    Finding a frog so quickly probably did little to effect your FC. I would continue the SLAM and be sure to pass an OCLT. But as long as your FC is not over the SLAM level, let the kids jump in. Make sure they each have a brush to scrub the pool while they're at it. Have a nice weekend.
    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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    Triplejnj's Avatar
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    Re: Small critter threw off my OCLT?

    Thanks for the tips! I will let the FC drop a bit for the day, let them swim, and SLAM it again later in the evening and hope the OCLT goes better tonight!
    As for my CYA, the best I could tell it was maybe a tad over 60 but not 70. Hence my SLAM target of 26.
    Tom
    16k freeform IG vinyl | Hayward 2hp pump, 300lb sand filter, 250k btu heater | AquaRite SWG | Installed October, 2014

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    Triplejnj's Avatar
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    Re: Small critter threw off my OCLT?

    Not completely done with the SLAM, but let the FC drop a little so the kids could swim. Here are pics from 3 days ago (pre-SLAM) and just now.
    I've learned so much from this invaluable site and it's users and look forward to helping others where I can.


    Last edited by Triplejnj; 07-22-2016 at 03:11 PM. Reason: insert images
    Tom
    16k freeform IG vinyl | Hayward 2hp pump, 300lb sand filter, 250k btu heater | AquaRite SWG | Installed October, 2014

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    needsajet's Avatar
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    Re: Small critter threw off my OCLT?

    That's looking terrific! The rocks can deserve a little extra attention with some diluted bleach in a spray bottle. Maybe some scrubbing depending what you think it needs. That's a very nice pool

    Did you know you can become a supporter? It's a modest one-time donation that helps us keep the lights on around here. It's tax-deductible and comes with some other perks as well. No pressure, you'll get help either way. There's a link in my signature.
    12k IG salt; glass beads in plaster; K-2006C, K-1766, CCL, and Aussie 4in1 (HTH); Pentair Eco800 1.2HP VS; Zodiac SWC 1.3 lb/day (25 g/hr); 25" filter recycled glass; OKU solar panels; 1/2 HP solar pump; Rebel (Warrior) pool cleaner; FlowViz; prior pool AG 10k | Read Before Posting to get the best possible advice | ... and this helped me a lot!: TFPC for Beginners

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    Triplejnj's Avatar
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    Re: Small critter threw off my OCLT?

    Thanks jet! Was my first SLAM and 2nd season with the pool. Amazing what household bleach does. Especially with the shelves and shelves of "stuff" the pool stores try to push on you. Will definitely look into supporting the site.
    Tom
    16k freeform IG vinyl | Hayward 2hp pump, 300lb sand filter, 250k btu heater | AquaRite SWG | Installed October, 2014

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    needsajet's Avatar
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    Re: Small critter threw off my OCLT?

    Shelves and shelves of expensive stuff! Thanks so much!!
    12k IG salt; glass beads in plaster; K-2006C, K-1766, CCL, and Aussie 4in1 (HTH); Pentair Eco800 1.2HP VS; Zodiac SWC 1.3 lb/day (25 g/hr); 25" filter recycled glass; OKU solar panels; 1/2 HP solar pump; Rebel (Warrior) pool cleaner; FlowViz; prior pool AG 10k | Read Before Posting to get the best possible advice | ... and this helped me a lot!: TFPC for Beginners

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