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  2. Pacific Sweeping started following Cat Water Pump vs Electric Water Pump heat issue
  3. Pacific Sweeping

    Cat Water Pump vs Electric Water Pump heat issue

    Pacific Sweeping replied to Mark Carter's topic in Tymco

    wow, great to know! Thanks for sharing Mark
  4. Mark Carter started following Cat Water Pump vs Electric Water Pump heat issue
  5. Mark Carter
    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.
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