Just discovered yet another problem *facepalm*
I want to backwash my DE filter, and the valve seems to be way to big to attach a hose to. We've gone to 2 different home improvement stores and can't find a set of adapters or pipes that will bring it down small enough (we keep buying some, just to come home and see that it's slightly too small or too big. Valve is glued in, so can't take it with us) so we're forced to backwash straight out, which just shoves the crud out towards the pool again, which is pointless.
I keep hearing people mention being able to "backwash to waste," but I can't figure out how to do that. As far as I can see, there's no pipe or setting for "waste." My filter has one lever on the bottom, with either "filter" or "backwash." And the only levers on the return and suction are "pool" and "spa."
Do you think the waste line is that thing capped off on the left of the pool return? Why would someone have capped it off? Can y'all look at this picture and tell me how (and if it's even possible) I might be able to backwash or vacuum to waste?