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Thread: Question about OCLT test

  1. Back To Top    #1

    Join Date
    May 2012
    Kansas City, MO

    Question about OCLT test

    So, I battled with algae in my pool for over a month and the water has finally cleared up after ALOT of bleach, vacuuming, backwashing, and testing everything (TF-100) for weeks. I was doing everything I've read here on the site, but despite it no longer being green, it was cloudy and just wasn't clearing up. Then, we remembered that last year, we had to clean out the sand in our filter, so we did that this past weekend, and after we did that, it literally cleared up overnight and we could finally see the bottom! Since it was still mildly cloudy, I retested and fixed my TA, which I found it to be at 40, so I brought it up to 80. I was mostly focusing on my shock levels (FC and CYA) before. My CYA is at 50. Anyway, last night I finally decided to do the OCLT test. After adding some bleach and some baking soda and waiting about an hour, my numbers were as follows:

    FC = 7
    CC = 0
    TA = 80
    CYA = 50

    This morning, I retested FC and CC only:

    FC = 9
    CC = 0

    Did I just not wait long enough after adding the bleach last night to test (it was just so late). It's pretty clear now, just a tad cloudy. Think it's safe to swim?? Kids have been super patient, but are ready to get in.
    28,800 gallons (33' x 4.5' round AG), Sand Filter

  2. Back To Top    #2

    TFP Guide

    cowboycasey's Avatar
    Join Date
    Jul 2013
    Fletcher, OK

    Re: Question about OCLT test

    no issues, probably not mixed well in the pool or a miscount (it was late)

    if you can see the bottom they can swim

    They will help mix everything up and continue to help clear your water, you can also add DE in your skimmer till your pressure rises 1 psi and that will help your sand filter better

    I hope this helps
    Pool: Intex 16x32 15000 gal, 2 speed 340042, Pentair CC320 Filter, CircuPool SJ45 Salt System, Intermatic PE653RC; Hot Tub: 650 Gal SWG Megachlor
    links: pool school * Recommended-Levels * SLAM * CYA chart * Test kits * How To Post Pictures * Poolmath * OCLT ** Support your website if we helped you :) **

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