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Thread: New TFP member, first results!

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    Join Date
    May 2013
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    Riverside, Ca
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    New TFP member, first results!

    I recently found this site because my pool was turning green regardless of the amount of chlorine I put into it as the weather was warming up this spring. My LPS was no help, saying I needed new cartridge filters and to keep adding acid because my high TA was the problem. So I began researching on my own and found so many different opinions, but only one that made sense to me. This one!

    WIth so so much great information on this site, (and reading through pool school a number of times) I was able to think back to how this problem started. Last spring, my LPS suggested I start by adding the appropriate amount of EZ CLOR, Clor Save (now I know it as CYA) to start the season, it worked fine. Then fall came around and they suggested I use 3" tabs so I don't have the liquid go bad if I don't use it through the winter since it doesn't need much anyway. Sounds fine, I thought. Then this spring, I try to get ahead of the game and add the appropriate amount of Clor Save...because my LPS told me to do it even though they, nor I, had the ability to check the CYA level....bummer.

    Two week later I had an algae bloom. I added probably 12 gallons of 12.5% bleach over the next 4 weeks and it just kept getting more green. That's when I found this site. After much reading and figuring out what happened, I decided to drain half the pool water and refill. I then used some calculations I learned from this site to estimate the amount of bleach I would need to get up towards shocking levels. 3 days later, my pool is blue again. I just received my TF-100 last night and took some measurements. It was pretty cool to see how close I was able to get from estimating on the pool calculator to what the result came in at. Anyhow:

    FC - 23 last night, 19.5 this morning
    CC - 0.5 last night, 0.0 this morning
    TC - 23.5
    PH - 7.8
    CYA - 110ish (slightly above the 100 mark)
    TA - 180
    CH - 600

    The high TA and CH are from the local water. I'll work to get the TA down but not sure if I can do anything about the CH. My CSI is at 0.4 so dropping the TA would decrease that number as well IIUC.

    My question is though, how sustainable is it to keep FC at 12 with CYA at 110? Will I constantly be adding bleach? I may run it for a bit just to see, then drain and fill another quarter if it's too much. Thoughts?

    Please let me know if you have any suggestions to keep this pool blue!!
    12K Gal. IG Plaster pool, Pentair Whisperflo 2HP pump, Pentair CCR420 cartridge filter, Hayward Navigator

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    Mod Squad Bama Rambler's Avatar
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    Re: New TFP member, first results!

    If you are very diligent about keeping the FC up, you can do it; UNTIL you have a problem. Once you have a problem you'll have to drain a lot of water to get the CYA down so you can shock effectively. However since you've found this site you know what to do if something happens.

    By the way, if the black dot disappeared just above the 100 mark in the vial, it's actually below 100 not above.

    I suggest that you read Richard320's thread about how he manages his CH and try to implement some of that.
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/¼hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
    Pool School ----- Pool Math ----- TF-Test Kit

  3. Back To Top    #3

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    Riverside, Ca
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    Re: New TFP member, first results!

    Sorry, yes the CYA was at 110ish below the line. I was thinking numerically above...

    Was there a specific post from him you suggest? I searched and viewed a number of them but couldn't find a specific run down of what he did. Just from reading it seemed like he's keeping his PH down and his CSI as low as possible.
    12K Gal. IG Plaster pool, Pentair Whisperflo 2HP pump, Pentair CCR420 cartridge filter, Hayward Navigator

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    Richard320's Avatar
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    San Dimas, CA (LA County)
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    Re: New TFP member, first results!

    High CYA thus: super-high-cya-t57905.html

    High CH: You've already figured out the CSI business. I keep TA down around 50-60 and pH on the low end and CSI stays okay. As the water warms up and the CH increases, it gets harder to do. I use pool water on the lawn and then refill it with the water I'd have put on the lawn. Same amount used overall. It shaves a little bit - maybe 20 ppm - each time. That's all you can do besides drain until the rainy season, if we ever get another one. I divert the gutter downspout and use CH-free rainwater to dilute the pool. A large enough area uses the one corner that I get 3X the rainfall to my pool. 1" of rain replaces 3" of pool. I wish it was more.
    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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    Join Date
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    Re: New TFP member, first results!

    Welcome to TFP!

    There isn't a member on this forum who has more experience in dealing with high CH levels and the manipulation of CSI to "make things work" than does Richard320. Follow what he has done and you'll be fine.

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