Chuckmeister728
Member
Hey, Everybody! Actually I was here 4 or 5 years ago,you helped me find a part. Thanks. Now I'm back with a pump question. My 88 yr old Dad still runs his 4 bay self serve (every day for 40 yrs!). Recently, we replaced a Cat 530 with an Arimitsu 516. We replaced the feed in check valve, but not the unloader. Pressure is set for 1200 psi with pump idling. When wand trigger is squeezed pressure drops,and system pounds briefly,before subsiding. Pump out put is steady-no pulsing. The remaining cat pumps connected to same system have no issues. Thank-you for your thoughts! Chuck.