Hello, I opened my pool about a week and half ago and everything seemed to be going good, water was clearing up. I didn't notice it the first time but when I started vacuuming the second time with in minutes it was putting green back in the pool and loss suction. I backwashed and took the filter apart and hosed down as well. Still same issue. I read some post that said if your pool is really dirty that ,that is normal. I have never experienced this ever. I have owned my pool for 11 years. I have had the issue in the pass with de coming back in the pool which was fixed with a oring. All grids and manifest have been replaced between last summer and the summer before. I have always experienced only being able to vacuum for 5-10 minutes and then backwashing again but everything I vacuum going back into the pool is new to me. I feel like all my work has been in vein . I read something else that said to put it on waste when you have a really dirty pool. My pool has always been really dirty when we first open it but decided to try that however I have a separation tank so it don't just go into the sewer, it goes into the separation tank which also loses pressure with in minutes. When I check the skimmer, there is not much in there and then the same thing happens when I vacuum through the filter, it just goes back in the pool. I am at a loss. Any suggestions?