I decided I would backwash the filter, but I cannot even get the valve to turn to that position.
It is this valve.
So I press the handle down to get the nub above the body face and turn, right?
I was able to get it to move most of the way to backwash, but then it really got stuck. The handle would not go back into a locked position even if it was lined up with a position. At this point I bumped the pump motor and that did pull the handle back into lock. It also discharged junk from the upstream side of the filter back into the pool.
Should these move freely?
I am worried something is not right in there but I do not want to take this apart if I can avoid it as I bet it is complex.