PVC piping

[nater]

Here's a pic of my setup. Not as clean but lots of options. The Main Drain and Skimmer have valves, I added unions so I can do repair work as needed (after having to cut the pipe for repairs), and I hard piped my backwash line under ground to a better discharge area. After the filter it goes through the SWC cell and then I have the option of running through the returns, fountain, or both. The controll box on the wall is for the Autopilot.

If I were doing a fresh instal I'd eliminate some of the 90's and lay it out a bit more efficiently, but I inherited the basic setup with the house.