I'm getting too old for this. I back washed yesterday. Instead of returning the valve to "filter" after "rinse", I accidentally returned it to "backwash". Didn't notice until I saw the water level get low (not too low to run the pump). So I reset the valve to "filter", and (thinking that most of the DE put in after the backwash had gone out) I added more DE and water. 2 things happened that puzzle me: 1) The pool clouded up with DE. I couldn't see where it was coming from. 2) I checked the filter psi after an hour. It was 0. I added more DE twice (didn't measure it out this time). Finally saw the psi rise to the minimum level.
The pump and filter are 1 season old. A pipe dumps the waste water into a lake. It was clear, since I've lowered the water level from rain recently.
What did I do that so much DE flushed into the pool? It's all over the floor after clouding the pool after I "corrected" my mistake.
I just want to understand what happened here.