A year ago my pump went out and I replaced it with an A.O. Smith B130 2.4hp. I believe my old pump was a 2hp. I have a 14K pool with 2 skimmers, a fountain in the spa that flow like a waterfall back into the pool and a sheer decent feature.
Also went the pump went out it collapsed a lot of the DE grids. I replaced all the grids. Now I noticed after a couple of month that a couple of grids are collapsed again and I constantly have low pressure issues.
After I replaced the pump and grids I had 20psi. When I have low pressure in the pool issues it is up to 30psi. I can back wash and I am back to 20psi.
Any ideas on the grids issue?