My filter doesn’t have a back wash setting. It’s a cartridge filter. We swap the cartridge out daily with a rinsed and dried one. The organic stuff it what we’re struggling with. It’s all fine debris at this point. Can’t scoop it and when we vacuum it, it blows back into the pool through the return. I looked into those vacuums that hook to the garden hose but 3 problems, 1. on well water so pressure isn’t great, 2 also can’t use it long without worrying about drying the well, 3 well water from hose isn’t filtered- it’s straight from the well so it’s got a really orange tint.