It does not appear we have sand going back into pool, just cloudy milky water whenever we start the pump (Krystal Clear Sand Filter pump 1,200 gph (110 - 120V). Goes like this for about 15-30 seconds, then becomes clear again. Due to this our pool is extremely cloudy. We did clean out some gunk from the top of the sand a couple days ago, but this started before we did that, thinking it would solve it. Have used all the standard store-bought chemicals to bring all to their required levels, and still cloudy. We will check the laterals in the filter and see if there is something amiss there. thanks.
Intex 18X9X52 Rectangular Ultra frame pool, 4545 gallons