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Thanks guys. I appreciate the link to the filter manual, ajw22. I know that most of the info I have read says 1 lb. per sq. ft. and so did the old bag of DE. The new DE (box of Dicalite) says that for 50 sq. ft. to use 7.5 lbs. to precoat. I used 6.25 lbs. this time fo my 48 sq. ft. filter. But...

How much DE to add to a clean filter? I have just removed and deep cleaned my DE filter. I’m wondering how much DE to add? And if I added enough? It is a 48 sq. ft. Titan Vertical Grid Filter. When I did it the last time, I felt it was not full of enough DE. I put what I thought was 5 lbs. but...

Does a 200 ppm CYA level invite Black Algae? Seems like I can't keep a high enough chlorine level with this high of a CYA. Black Algae is mostly on the walls with some now spreading down the deep-end walls and a just little on the bottom. To find the 200 ppm CYA value, I used the Pentair Rainbow...

I'm a new owner of an old pool. Just learning how to take care of it myself. Steep learning curve but I'll push thru and figure it out. The pool is nothing fancy but that's fine for us. I've attached a photo of it and filled out my signature and profile if you want to get more details. I found...