Mine is the Shurflo 5.7 and have used the filter and screen that comes with it. I have heard that they have problems with these pumps. I have even installed another filter before the pump and the filter is clean all the time. I have friends that have had the same water pump for 6 and seven years, leave it on when they are traveling, when we are tailgating, etc. The only time they turn it off is when they have it parked for a period of time in their driveways and they are not using it. Looking for a different setup.