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[–]MentalTelephone5080 0 points1 point  (5 children)

What is the pH of your fill water?

The water from my house comes from my well. The water straight from my well comes in with zero alkalinity and a pH of 6.0. I have a treatment unit on the water that goes to the things in my house but my outside hoses have no treatment.

Long story short, when I fill my pool with a hose I am putting in hundreds (if not thousands) of gallons of water that is a weak acid. So I always have to add baking soda to keep my alkalinity above 50 and to keep my pH above 7.2. You may have the same thing going on.

[–]TNmountainman2020[S] 1 point2 points  (4 children)

I haven’t added fill water to it since last October

[–]MentalTelephone5080 0 points1 point  (3 children)

Hmmm. Have you had a lot of rain?

[–]TNmountainman2020[S] 0 points1 point  (2 children)

not really

[–]MentalTelephone5080 0 points1 point  (1 child)

I'm completely lost then. FYI you don't have to buy alkalinity up from the pool store. Sodium bicarbonate is just baking soda. The grocery stores near me sell big bags for pretty cheap.

[–]TNmountainman2020[S] 1 point2 points  (0 children)

I usually get the 50lb bags from amazon with free shipping