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Thread: POLLEN? I think so... but not sure

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    POLLEN? I think so... but not sure

    Let's start with a bang (picture taken last night at 7:30PM):


    This came out of nowhere! Went out of town last weekend, Friday night I brought the pool up to Shock levels because I was going to be away from it for 2 days, and came back to this!

    Been maintaining shock levels of chlorine and running the filter 24/7. Brushing once or twice a day!

    These were my test results this morning (7:35am): (FC was at 11 last night at 11:00PM)
    CYA: < 20 (I keep adding it, it doesn't seem to go up?) Planning on adding more
    FC: 10.5
    CC: ~0.5 (within margin of error for the test)
    TA: 110
    pH: 7.8 (going to get acid to bring down tonight)

    I have noticed what looks like a yellow cloud when I brush the shallow end. Chlorine consumption isn't greater than normal, and FC is constantly reading at < 1ppm.

    I don't get it, feel very discouraged. I initially thought it was algae, but my OCLT doesn't point to that. So weird.

    Thinking about adding some DE to my filter, I would just hate to lose it when I backwash.
    24,000 gallon
    Vinyl Liner
    In Ground Pool
    Hayward super pump 1hp
    Hayward S220T 250lb. Sand Filter

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    Mod Squad Bama Rambler's Avatar
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    Re: POLLEN? I think so... but not sure

    That certainly looks like algae and not pollen.

    How much CYA have you added total?
    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

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    Re: POLLEN? I think so... but not sure

    I am having a hard time remembering exactly, but I am pretty confident it has least 7 lbs, which according to the calculator should add 35ppm. If I remember correctly I got a 4lb bucket from Leslie's and a 3lb container from Wal-Mart.

    Also, in my experience, algea will change color in a day after shocking it, this hasn't changed colors.

    I am going to keep at it, but it is frustrating!
    24,000 gallon
    Vinyl Liner
    In Ground Pool
    Hayward super pump 1hp
    Hayward S220T 250lb. Sand Filter

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    Mod Squad Bama Rambler's Avatar
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    Re: POLLEN? I think so... but not sure

    Algae doesn't always change color.

    I'd use the FC level based on 40 ppm CYA.
    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

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    Re: POLLEN? I think so... but not sure

    Pool still hasn't cleared up.

    Looked into my filter yesterday and realized it was REALLY low on sand, replaced the sand yesterday. Hope that helps.

    Full readings from yesterday
    FC:12ppm
    CC: < 1ppm
    pH: ~8
    TA: 100
    CYA: 30ppm

    Still confuses me that the algae could be dead and still green, I've never seen that happen before, but I will take your word for it. I'm not going through a ton of chlorine, and my CC is low, so I guess it makes sense.
    24,000 gallon
    Vinyl Liner
    In Ground Pool
    Hayward super pump 1hp
    Hayward S220T 250lb. Sand Filter

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    Butterfly's Avatar
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    Re: POLLEN? I think so... but not sure

    um, try letting the FC drop below 10 and then retest pH and lower to 7.2.

    After you confirm the 7.2 pH, return to the SLAM process shock levels.
    TFP Moderator TF100 Test Kit TF100 TestKit YouTube Channel PoolMath
    You're done SLAMing when:
    1)You lose 1ppm or less FC overnight, & 2)You have .5ppm CC's or less, & 3)your water is clear.

    ~ One should not use a sledge hammer to swat a mosquito. ~

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    Butterfly's Avatar
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    Re: POLLEN? I think so... but not sure

    I'd use the FC level based on 40 ppm CYA.
    I agree. Use 16 shock level.
    Also, I suggest you do not add any more CYA until you can confirm the 7lbs added. Wait a few days and retest.

    Have you added any other chems lately? like an algaecide maybe?

    What is the fill water source? well or municipal/public?
    TFP Moderator TF100 Test Kit TF100 TestKit YouTube Channel PoolMath
    You're done SLAMing when:
    1)You lose 1ppm or less FC overnight, & 2)You have .5ppm CC's or less, & 3)your water is clear.

    ~ One should not use a sledge hammer to swat a mosquito. ~

    If you found TFP helpful and we saved you money ... Become a TFP Supporter!

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    Re: POLLEN? I think so... but not sure

    Teh 7lbs of CYA has been since the beginning of the summer, and I added another 3 lbs 2 weeks ago, I am now registering ~30ppm CYA.

    I have added no algecide, the only other chem lately has been muriatic acid to bring pH down, which has been creeping up in a weird way.

    I have well water, but haven't added any since the beginning of June, since then it has been all rain water.
    24,000 gallon
    Vinyl Liner
    In Ground Pool
    Hayward super pump 1hp
    Hayward S220T 250lb. Sand Filter

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    Re: POLLEN? I think so... but not sure

    Any update on this? This is exactly what I am going through now.
    24000 Gallons
    Cristal-Flo Hi-Rate Sand Filter
    IG - Vinyl
    3/4 HP Pump, and 44 Flow Rate
    Older than 10 years.

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