After backwash, I add the DE, I know to put in only 80%. A few weeks ago, I took the filter out to clean the fins. After I put them back, I put in the full DE amount for my filter. I noticed DE going back into the pool. Any ideas? Is the full amount after cleaning still too much
EDIT - This morning, I bw'sd the filter, put in some DE and out from the jets came the DE. I turned it off. Took the fins out to see, they werent that gummed up at all. I took them out, cleaned all of them, rinsed out the bottom of the filter. Put it back together and turned it on to get the air out. Once it was primed, I put in one scoop of DE, i watched the jets, out came some DE. Why?