I am not sure what the return is but there are two jets in the pool. One has water coming out of it at a decent clip and the other does not. All lines are open and the 6 way valve is set to filter. Could the main filter (the one that looks like a well tank) be clogged/full? Do I need to backwash? Everything was working for a day or so and now it is not. The pool had a lot of leaves in it too. There is no pull whatsoever from the skimmers/filters in the pool. I do not know what to do? Can the motors be damaged?