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Thread: check my numbers

  1. Back To Top    #1

    Join Date
    Jun 2015
    Location
    middletown, nj
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    27

    check my numbers

    Moved in to a new place 2 weeks ago and with all the stuff to do around the house the pool did not get my attention at first, so a little bit of mustard algae popped up. Grew up around pools, so know the basics and when there is trouble brewing. We had a basic test kit and there was very little chlorine in the pool. Reading up here (thanks all!) I ordered the TF-100 immediately. But, before it came I tossed the chlorine pucks out and put some bleach in to hopefully stop the algae (along with a ton of brush downs). Chlorine, running the filter, and brushing took care of the algae and I quickly got to the point where I wasn't losing any chlorine overnight. It has been great for a few days now.

    Got the test kit and did a full test last night:
    FC 2.5
    CC 0
    PH 7.5
    TA 120
    CH 100
    CYA 55

    Based on that I added the pool math number for bleach last night. This morning I tested chlorine again and it was spot-on. Correct me if I am wrong, but the only thing I need to address is the calcium, right?

    Love doing things myself, cutting out a pool man makes me happy. Thanks to the contributors here all my questions have been addressed in old threads, a tremendous resource!
    30K gal IG w/ hot tub
    Pentair DE filter, 2 single speed pumps

  2. Back To Top    #2
    Mod Squad woodyp's Avatar
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    Apr 2010
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    East Texas
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    8,997

    Re: check my numbers

    Yep, calcium looks like it could use a boost and your TA is a tad high. Your PH may be more stable at a lower TA.
    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!

  3. Back To Top    #3
    JoeSelf's Avatar
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    Jun 2014
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    Glassboro NJ
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    Re: check my numbers

    CYA 55 I would use 60 for my number. Pool School - Chlorine / CYA Chart shows target of 7 not to go below 5. I would target higher 8-9 and see what happens during daylight hours to dial in target.
    13700 gal, 32'x16'x54" AG oval, vinyl, Echo Canyon II, 8500 series, Narrow Yard, Safety Fence & Stair, Sta-Rite Crystal Flow T-210WF, 44 GPM, Hayward SP1580TL 1HP Pump, Aqua Luminator, Festiva wedding cake steps, March 2006, TFT-100, Speed-Stir, Sample Sizer. Avatar Credit: TJ Townsend

  4. Back To Top    #4

    Join Date
    Jun 2015
    Location
    middletown, nj
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    27

    Re: check my numbers

    got it, thanks all.

    That FC reading was at 8 pm after a hot and sunny day. I added chlorine last night and it was up to the 7 level - tested again before 6 am and lost nothing. I will test again this afternoon to see what the numbers are. It was my first time with the TF-100 so I have a feeling there is a learning curve with the CYA test ... as the directions say, "it may take a couple tries to get it."

    Much appreciated, I have guests with kids coming over this weekend and one myself (till #2 is here in December) . Time to see some smiling kids in the pool!
    30K gal IG w/ hot tub
    Pentair DE filter, 2 single speed pumps

  5. Back To Top    #5

    Join Date
    Jul 2015
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    Burkburnett/TX
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    57

    Re: check my numbers

    I am sure you have this figured out now...but with a CYA of 60...if you are chlorinating to 7, and falling below 5 during the midday sun, you need to raise your target FC level. You don't want to ever fall below 5 at your CYA.

    Sean
    17X34 above ground painted concrete pool. 32" deep on the shallow end, 44" on the deep end. Sand pool filter.

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