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Had minor algae, started off w/high CYA, removed 30% water, CYA reduced after refill. Then began shocking w/bleach. Algae gone, did the overnight FC test, passed. Now the CYA is back up to 100. This is a SWG plaster pool. Do we need to remove water again? I know to add acid to lower pH...

My son is helping a neighbor with his 17,500gal. plaster SWG pool. We have been using the TF method on our pool for 2yrs. now with SUCCESS!! :lol: We used our Taylor TF-100 and got all of his values to start w/owner supplying additional phosphate value from pool store. They are dying to...

I have to use Jack's Purple Stuff on a regular bases for my SWG pool. Does anyone know where is the best place to purchase? I have purchased at Leslie's, but holy toledo....very expensive. :shock: TIA

I am going to do the ascorbic acid treatment and want to add Polyquat 60 to avoid algae problems. Where is the best place to purchase? TIA :)

I have a 16K SWG pool. Was out of town for 5 days and then we have had a lot of rain. There are these small yellowish looking spots in the deep end. They do not come off with brushing. Water tested with the following results: FC 2-4ppm (Taylor Kit) TA 160 CYA >80 pH 8.2...