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Thread: here we go again....

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    Unhappy here we go again....

    Hello all,
    I am dealing with an algae bloom again. I have had no swimmers in the pool for a week. I have run water tests everyday (sometimes morning, sometimes evening and sometimes both. I have kept my FC at 5 with it dropping to 4 usually but once to 2. I have kept the solar cover on so I have not been judging water characteristics other than it looks clear to me when I dip for the sample. Today I took the cover off only to see the yellow/green streaks. Water tested 5 FC, way closer to 30 than 20 on the viewing tube for CYA. I tested for CC after brushing and got a reading of close to 1. I added 2 96 oz. jugs of 8% Clorox. So my question is this, could this be a circulation issue? When I am slamming I leave my pump on but when I haven't any (known) issues I just turn it on when I get home from work and leave it on until bedtime, 4 or 5 hours. Could I not be getting enough circulation? Thanks for listening, any input will be appreciated as always.- Melinda
    AG AquaLeader 21x43 Oval 54" deep. Hayward 2speed 2HP pump,Hayward 350,000 BTU NG Heater, Cartridge filter. Since August 2012. TFT 100 test kit

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    Mod Squad JohnT's Avatar
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    Re: here we go again....

    Have you had rain? It seems to me that when it rains and water accumulates on the solar cover, algae can get a start in that unchlorinated water and then get going in the pool.
    TFP Moderator
    20K Gallon 20X36 Vinyl Inground
    Hayward S244T Sand Filter with 1HP Whisperflo Pump. Liquidator C-201 and Solar Heat

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    Re: here we go again....

    No John, not too much in the last week, but that is something to think about. Thank you
    AG AquaLeader 21x43 Oval 54" deep. Hayward 2speed 2HP pump,Hayward 350,000 BTU NG Heater, Cartridge filter. Since August 2012. TFT 100 test kit

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    Richard320's Avatar
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    Re: here we go again....

    I suspect lousy circulation and insufficient brushing. I have three returns, and I know there are dead spots. One, all the leaves settle in a drift in the same spot. 2) You can feel bands of temperature differences when you get in. So it figures if my pool suffers, all pools suffer from it. Brushing moves the chlorinated water into those dead zones. If the cover's on, you're not brushing.

    If you don't have one, consider a wall whale pool brush. You just go back and forth; the fin provides the downward pressure. It's much easier on the shoulders.
    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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    Re: here we go again....

    Have I overlooked your current CYA level, I can't find it?
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Richard320's Avatar
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    Re: here we go again....

    Quote Originally Posted by duraleigh View Post
    Have I overlooked your current CYA level, I can't find it?
    "way closer to 30 than 20 on the viewing tube for CYA. "

    Gotcha!
    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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    Re: here we go again....

    Will look into the Wall Whale. Will it help if I run the pump
    on high for longer periods each day? Does the placement of my steps impede flow enough to matter?
    AG AquaLeader 21x43 Oval 54" deep. Hayward 2speed 2HP pump,Hayward 350,000 BTU NG Heater, Cartridge filter. Since August 2012. TFT 100 test kit

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    Richard320's Avatar
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    Re: here we go again....

    Quote Originally Posted by waterbugs57 View Post
    Will look into the Wall Whale. Will it help if I run the pump
    on high for longer periods each day? Does the placement of my steps impede flow enough to matter?
    It could, if the algae is downstream of the steps. I don;t know about speeds, since mine is an old fashioned single speed.
    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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    Casey's Avatar
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    Re: here we go again....

    You've got a very large oval pool so I'm not surprised you have dead spots. Above ground oval pools are nice but, in reality, they need an additional skimmer and return put on the opposite end to keep the flow going.

    It is my opinion that you can not put a solar cover on for a few days and forget about it. I've done it and always ended up with green plums too. You have to remove the cover, brush the pool and sweep it and put the cover back on if you want to keep the algae at bay. Why it does this, I don't know but I have a round pool and I have to take the cover off at least every 2 days and brush and sweep it.
    I'd bet you my bikini you'll never get TFP water from a pool store!

    24' Sharkline Venture De Filter

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    Re: here we go again....

    Casey, can I ad a skimmer and filter? Also will change my cover habits. PIA that it is, it does keep the water comfortable and although I thought it would help with chlorine savings it doesn't really because I end up slamming to get rid of the growth....maybe that will change if I uncover and sweep...Thanks...by the way, you are not far from me in Brownsville, about 5 miles.
    AG AquaLeader 21x43 Oval 54" deep. Hayward 2speed 2HP pump,Hayward 350,000 BTU NG Heater, Cartridge filter. Since August 2012. TFT 100 test kit

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    here we go again....

    Quote Originally Posted by waterbugs57 View Post
    Casey, can I ad a skimmer and filter? Also will change my cover habits. PIA that it is, it does keep the water comfortable and although I thought it would help with chlorine savings it doesn't really because I end up slamming to get rid of the growth....maybe that will change if I uncover and sweep...Thanks...by the way, you are not far from me in Brownsville, about 5 miles.
    FC consumption increases with increased water temperature. Covers do not decrease chlorine loss because chlorine is not lost by evaporation, it's lost through oxidation of organics into chloramines and through disinfecting water (aka, killing algae & bacteria).

    I live in the SW and thought a solar cover would be a great idea. Total 180deg experience - it's a pain to put on and take off, it just collects debris and gets full of stagnant water puddles and it has the "out of sight / out of mind" effect, ie, when the cover is on I pay less attention to my pool water.

    So the pool cover now basically sits in the corner of yard acting as a lizard, spider and scorpion habitat.



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