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Thread: Water is clearing up but makes me wonder...

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    Water is clearing up but makes me wonder...

    So I have a new pool this year, and it is my second pool to maintain with the TFP method, or BBB (and of course muriatic acid). My previous pool in Texas had a DE filter. It always got the job done. My new pool has a sand filter, and I have sometimes questioned whether or not the thing even came with sand in it. Since we've had it, I've had trouble with clay in it (from our soil during the build from before I got the sod put down) and recently it's gotten green and cloudy though it consistently passes the OCLT. I maintain my pool chemistry and measure the values. Keep my CYA around 35-40 and FC around 5 except when I started having problems I've upped it to 20 sometimes.

    Here is the issue--no amount of scrubbing had been clearing my pool of this green stuff. Recently I came to the conclusion that it MUST be pollen. It tends to settle onto the bottom flat surfaces rather than ever being on the sides really. I swept it all into the deep end and vacuumed only to watch it come out of the Jets and cloud the pool again, and subsequently settle to the bottom. So I have been adding DE to my filter, and it seems to be helping some. Add DE, brush, pressure spike, backwash, repeat. I assumed its working because 1) the pressure never goes up with sand alone so the DE must be catching something and 2) I see a bunch of the green stuff in the bubble when I backwash.

    But the biggest change was overnight last night. I got free chemicals when I installed the pool and they gave me algaecide. Looks like motor oil kind of. I said screw it and dumped it in the pool. Now I think my pool would've cleared up following my DE method over a few more days, but this morning there was a noticeable difference. I've been wondering if there was a chemical that would cause particles to clump together so they wouldn't sneak past the sand. Maybe that's what the algaecide did? The water wasn't green when I put it in last night, just cloudy, but it was noticeably less cloudy this morning.

    Just wondering if anybody has thoughts on this or has experienced anything similar.

    P.S. I did at one point take the filter apart and clean it. It had plenty of sand so I guess my suspicions of no sand were wrong...
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    Donldson's Avatar
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    Re: Water is clearing up but makes me wonder...

    What type of algaecide was it? I believe polyquat (the 'TFP accepted' type) also acts as a mild clarifier so if that was it then it is possible.

    My biggest concern from your description is whether your filter is working correctly. If you are regularly seeing what you vacuum fly back out afterwards then it really seems as if your filter is not doing the job. Do you remember what brand sand is in it? How did it look when you cleaned the filter out?
    JD - 28' Round Above Ground Pool, 17,000 Gallons. Dual speed Jacuzzi pump with cartridge filter. Dual speed 1 HP pump, Hayward S210T sand filter
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    Re: Water is clearing up but makes me wonder...

    Not sure what brand algaecide. I do remember it had a super long chemical name and was in a tall slender tube. And looked like clean motor oil.

    I think the sand is fine tho I don't know what brand it was when the PB put it in. SaND never comes out in the pool, and it catches the DE I add but misses this pollen or whatever it is.

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    Mod Squad YippeeSkippy's Avatar
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    Re: Water is clearing up but makes me wonder...

    How about the use of a skimmer sock? That would help trap some for inspection at least. Pollen is very soft and fluffy.
    My Amazon Smile for November12K Fiberglass IG, Infinity 4000 automatic cover, SWCG, Hayward Sand Filter, Hayward 1.5 Pump, Doheny Discovery Robot, Savi Melody LED pool lights, outdoor speakers and other assorted doo-dads. Sundance Altamar Hot Tub.
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    Re: Water is clearing up but makes me wonder...

    Yes Skippy. Been using a sock. When I pull the sock out if the water, it is green and leaves green water behind in the basket because apparently whatever is in my pool is finer than the sock. It looks great today, though. Just continuing to throw DE at it and sweep occasionally. I need to read through some of these other posts actually because I keep seeing people mention pollen as well. Maybe this was a bad year for it?

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    Mod Squad YippeeSkippy's Avatar
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    Re: Water is clearing up but makes me wonder...

    Are you seeing pollen covering your car and such too? It seems kind of late in the season for our area of the country.
    My Amazon Smile for November12K Fiberglass IG, Infinity 4000 automatic cover, SWCG, Hayward Sand Filter, Hayward 1.5 Pump, Doheny Discovery Robot, Savi Melody LED pool lights, outdoor speakers and other assorted doo-dads. Sundance Altamar Hot Tub.
    Our pool build--> Our Pool Solved Our Sloping Yard Skippy's Cheap Pool Cooler -->Skippy's New Fountain

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    Re: Water is clearing up but makes me wonder...

    My Crepe Myrtles just popped a few weeks ago. Maybe something like that is going on in Clarksvillle, with all the recent rain and temps we been having.
    The flowers are dropping in my pool now...
    Bob - Palm Beach by San Juan Pools. approx 5000 gals., Pentair 320 cartridge filter (all new guts installed by me), Goldline SWG, 'New to me' Kreepy Krauly Sand Shark, Intermec 104 Timer Test kit: TF-100 w/Speed Stir

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    Re: Water is clearing up but makes me wonder...

    I've got several trees that drop a lot of leaves in my pool. Skimmers fill up daily and Polaris bag does as well. I'm thinking it's coming off those leaves

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