Quote Originally Posted by PoolDoc View Post

Still just sounds like massive dead floating algae, and the typical problems that result when you try to clean that up with a really typical, really poor, AG pool filter setup. In general, AG pool sand filter and pump combos are TERRIBLE at cleanup.

*********** I have two filters. The original was the powerflo matrix 100 sq ft cartridge. The pump is a one HP two speed. I run on lo 90% of the time. When I needed a new cartridge one yr because the cartridge clogged in hours, I opted for a sand filter I found on a list site. It was the 166T hayward. Free. What I do is use that for heavy spring clean up, then go to cartridge. But last yr I just kept the sand running all yr. This yr I started with the sand. Since it was not cleaning, I kooked the cart back up. But the cart cloggs too fast and has thin spots where I can see daylight. So I am just running sand now.

There is another issue. I don't know which clarifier you used, but overdoses can make smaller particles essentially un-filterable. Add up your TOTAL clarifier use over the last week and compare it to the maximum dose on the bottle. If you are over, or close, that's probably a contributing factor.


******** Clarifier I used leslies ultra bright. 2oz, 2oz and 4 oz on three different days. Says 4 oz treats 10000 gal. I have not put any in, in a couple of days.

HOWEVER, it sounds like you ARE filtering if you use DE or the cartridge.

************* I am using DE in the sand. 1/4 cup raises it 1-2 psi.

If you are willing to wait another week, turn your filter on high, leave the cartridge in (get a new one if you can) and filter away. Do NOT add more clarifier. DO keep the chlorine high, to kill any remaining algae and to break down (hopefully) any excess clarifier.

********* Getting a cartridge Tuesday. Its shipped from CA. It was 49.00 on line. Pool stores has to order at $125 bucks. This is a Unicel. They say they are the same or better quality.

If you want a clear pool sooner, go get a new DE filter or drain and refill. In fact, with just 6200 gallons, it would be cheaper to drain and refill.

******** Dont want to drain, but with all the backwashes and refilling, I think thats why its not as cloudy, but it is really cloudy.

Best wishes.

Ben

PS. Just had a thought -- is the sand in your filter LABELED filter sand? Some dealers have sold coarse sandblast sand as a high margin substitute. If so, you need to replace the sand you have with real filter sand. Doing so won't affect anything with the cartridge in place, but long term, it will.

********** This is real filter sand. Its the white middle of the road stuff. The choice was sand. middle of the road sand, or zeolite. This is a white sand.

My # should be there.