I have the combo sand filter/swg by Intex and love it. This is my 4th season with it, and it still works fine. The only possible issue : The pump/filter/swg is set on one timer together. You can't run the swg for 4 hours and then keep the pump/filter on longer without manually changing it. So if you like to run your pump/filter all day, it would be a hassle to change it every single time. I just run mine for 4 hours, which is how long it takes the swg to produce the desired level of chlorine to keep my FC where it needs to be.