Mark Carter 0 Posted March 9, 2020 In a previous post I was dealing with a Cat pump with reduced pressure. As often happens the simple solution was to just swap it out with a stock electric pump. Then the new electric pump would run great for 10-15 min and shut off. After 3-5 min it would come back on. The more nozzles were open the longer it would run. Since this seemed like a heating problem - I checked the pressure relief valve to see if it was returning water to the tank. Which it was. More investigation revealed that the Cat pump uses a 50 PSI relief valve, whereas the electric pump uses a 25 PSI valve. So I was getting too much back pressure causing the pump to overheat. Now with the proper 25 PSI relief valve - everything works great. Hope this post saves someone some time. Share this post Link to post Share on other sites
Pacific Sweeping 4 Posted June 29, 2020 wow, great to know! Thanks for sharing Mark Share this post Link to post Share on other sites
