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Thread: Been great for a year but...................

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    Join Date
    May 2014
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    Dallas, Tx
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    Been great for a year but...................

    Hi all, writing from just south of Dallas where is just started raining again but luckily no flooding in this area. I have been able to keep the pool chemistry pretty stable over the weeks but this morning my FC was 3.5 and I put in 2 gallons of 8.25 bleach which should have brought it up to 7.3. Just checked it and it is back at 3.5.
    The numbers a few minutes ago are;

    FC - 3.5 CC-0
    PH - 7.7
    TA - 70
    CH - 225
    CYA - 30

    Over the last two weeks I have seen light yellow staining twice on a couple of walls, brushed it and no return yet. The pool is clean of debris(consistently taking out leaves, flying ants, twigs etc, in this stormy weather). I have run the OCLT twice in the past two weeks and been less 1 ppm loss both times. Time to shock? More rain coming daily at least through Saturday. Based on information from TFP archives, I haven't panicked in the rain, just made adjustments daily to stay in range from the PoolMath numbers. Would appreciate any suggestions.
    Mike

    Pool is inground 20' x 40' 42000 gallon, rectangular plaster about 60 years old, replastered 2 years ago. Pentair VS Intelliflo pump, Pentair 420 Clean & Clear Plus Cartridge filter. Using K-2006 test kit.

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    Richard320's Avatar
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    Jan 2010
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    San Dimas, CA (LA County)
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    Re: Been great for a year but...................

    On those rare occasions we've had rain, I just up the FC a couple PPM to deal with whatever washed in.
    16K freeform gunite with spa; Pentair 4000 DE filter; Century Whisperflow 1 HP; Pentair Minimax heater.
    Troublefree does not mean Maintenancefree. It's like brushing your teeth: You can spend a couple minutes a day and pennies a week or go to the dentist once a year and spend several thousand dollars.
    A pool is like a pet - you have to feed it every day, even the days you don't want to play with it!

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    BoDarville's Avatar
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    Jun 2012
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    DFW, Texas
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    Re: Been great for a year but...................

    mbeck5, I'm with ya on this one - literally and figuratively. With all the rain, I've also upped the chlorine a bit. I'm keeping it in the 4-5 ppm range and my CYA is about what yours is. Odds are that the yellow staining you're seeing is runoff and/or washed out debris from the atmosphere. (pollen, dust, etc.). Just keep up with the chlorine and you'll be fine. In fact, you may want to check your CYA level when you get a chance. Normally rain has a negligible effect on water chemistry. However, with the abnormally high amount of rain we've had lately, your water could have been diluted enough to lower it. Worth checking to make sure.

    Right now, there's a line of storms between Ft. Worth and Abilene working its way east. We have a chance to check and top off the chlorine levels before it arrives.
    Gold Supporter, TFP Lifetime Supporter, 26,680 gal Plaster IGP 3.5 - 10' depth / Attached Waterfall Spa, Manually Chlorinated, Triton Sand Filter, 1.5 HP * 1.1 SF = 1.65 SFHP 1-speed Pentair WhisperFlo WF-26 Pump, 400K BTU NG Teledyne Laars Series One Heater, Polaris 360, Test Kit Comparison, Chlorine/CYA Chart, SLAMing Your Pool, OCLT
    A good test kit is an investment, not an expense.

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    Join Date
    May 2014
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    Dallas, Tx
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    Re: Been great for a year but...................

    Thanks guys, appreciate the responses. This morning's numbers are;
    FC - 4.0
    CC - 0
    PH - 7.7
    TA - 70
    CH - 250
    CYA - 40

    Looks like we may have a few days of sunshine at last!!
    Mike

    Pool is inground 20' x 40' 42000 gallon, rectangular plaster about 60 years old, replastered 2 years ago. Pentair VS Intelliflo pump, Pentair 420 Clean & Clear Plus Cartridge filter. Using K-2006 test kit.

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    Mod Squad pooldv's Avatar
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    Re: Been great for a year but...................

    Yeah! Need some pool days.
    That FC is a tad low, makes me worry. I would keep it more like 5-6 to be on the safe side. It is has to stay above the minimum at all times so algae won't grow, Chlorine CYA Chart
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    2012 build and pics, 20k gal gunite, black onyx pebblesheen, OK flagstone, IntellifoVS, cart filter w/Pleatco, IC40 SWG, Solartouch, 5 12'x4' solar panels, HP50HA heat pump, 8mil solar cover, borates, TF-100 test kit, SONOS, Doheny's Discovery Robot, hot tub on bleach

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    Join Date
    May 2014
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    Dallas, Tx
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    Re: Been great for a year but...................

    Will do. Thanks again pooldv!
    Mike

    Pool is inground 20' x 40' 42000 gallon, rectangular plaster about 60 years old, replastered 2 years ago. Pentair VS Intelliflo pump, Pentair 420 Clean & Clear Plus Cartridge filter. Using K-2006 test kit.

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