Hi, so i'm having filter woahs....
after taking apart the grids in my filter, i found several tears. one large and a few small ones. I replaced one grid with a brand new one and the others, i patched by sewing wiith dental floss and using waterweld.
after turning on my filter for the first time (this season) and immediately adding 4 cans of DE, the filter pressure is only at 13. two years ago, 20 was the normal pressure and i backwashed at 25. then last year, it dropped to around 15 and i backwashed at 20, but it worked so i didn't worry about it too much. this year, i thought after cleaning and fixing the filters, it would go back to 20 at least, but it's at 13 now. what could be the issues? should i be concerned that pressure is too low?
thanks so much!