so I have a problem that I have been having for a couple of years.. I have an in-ground pool using a Hayward DE48 (older model) and RX50 valve.. A couple of years a go I have backwashed the filter and as usual I coiled up my 1 1/2 " hose and put it back by the filter.. What I didn't do is move the it back to it's regular setting and the filter came on later that day.. When I came home and saw it I immediately shut the filter off.. Man that hose and filter were screaming and I'm surprised nothing let go with a big bang... So while it's not a lot of DE getting back in is just a PIA.... I have replaced the grid in the filter and rebuilt the RX50 valve to no avail.. I was thinking the pipe in the filter could have a hairline crack but Hayward doesn't make parts for that anymore? Any suggestions???