We have had a Hayward pump for about 2 1/2 years. The pressure runs between 14 - 16 psi sometimes up to 18. This year it has been a steady 18 and in the last few weeks creeps up to 20. We have backwashed repeatedly, used backwash cleaner. The water is crystal clear. We keep cleaning out the skimmers and backwashing. Today the pressure was at 20 PSI and I did not notice any debris in the skimmer or pump tub. I have not noticed any signs of leaks. Everything seems to be normal. This is an above ground, oval pool, 4ft. deep. Water level is good.