I have a 1.5 hp pentair heater model 160354, and all was fine, starting at 10 psi, (pool is 13,000 gallons, 14 x 28, and 3.5-5.5 deep) We just added a heat pump, Rheem Raypak model 5450 and now the starting pressure jumped to almost 30 psi. I read 30 psi starting pressure is too high, especially if the filter begins to get dirty, it will drive the pressure to 40, not to mention put more work on the motor. The company that installed the pool heater (same one installed the pool) said its normal, but the water pressure coming out of the jets in the pool as well as the fountain connected to the pool, has dramatically been reduced as well. Wondering if anyone else had this issue. Very concerned.