I have a 15' round AGP with a new-to-me Waterways cartridge filter. Right now, the hose runs right from my skimmer box into my Hayward pump, then directly into the filter, then out to a single return. There are no shutoff valves anywhere, so when I need to clean the cartridge or do anything with the pump or filter I must disconnect the skimmer box hose at the pump and hold it above the water line. Obviously it'd be much easier to have a valve somewhere. But being new to this setup and unable to find a picture of a shutoff valve, I'm not sure what to do.
FWIW, all of my lines are flexible tubing, connecting using hose clamps.
FWIW, all of my lines are flexible tubing, connecting using hose clamps.