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I need to reduce my alkalinity from 150 down to about 70-90 for a salt water in ground pool. According to pool math, it says to decrease pH to 7.2 and then raise the pH by aerating the water. My pH was already at 7.2 from opening it and the alkalinity only dropped from 150 to 130 in a week...

I've got a Hayward de4820 de filter. I cleaned the whole thing before putting it away for the winter. I opened it and looked at it before starting the pool this season, it looked ok so I closed it back up. I started vacuuming the pool to waste and had problems with the vacuum (there's another...

I just bought a house with a pool in August last year. We enjoyed it for another month or so before closing. I'm trying to open the pool this week and having issues with the skimmer vac. It's an in-ground vinyl pool about 20x40 lazy L with a 6ft deep end a 3 ft shallow. It's probably...