I just got my pool installed and and hooked up my 22" sand filter and an intex salt water chlorinator after it. I put 3 lbs. of stabilizer in the skimmer like the directions said too. I was afraid that the pump was starving for water and started to dig to where I could see some of the screen. I then noticed the stabilizer that was small enough to fit thru the skimmer screen made it all the way back to the pool. I used 2 boxes (50 lbs.) of D.E to fill my sand filter instead of using sand. Isn't the sand filter supposed to catch something as big as the stabilizer which is like the size of rock salt?