Hello, I've been battling a problem with constant dirt settling at the bottom of the inground gunite pool 20k gal. and attached spa..I even vacuum to waste, get it clean, run filter again and few days later more dirt..I even removed the DE filter from the loop and pulled the grids and put the multiport valve on recirc..Same thing..I imagine I have a cracked pipe or something pulling in dirt. Would a suction side leak or a pressure side do something like this? Any suggestions