Howdy all,
Well after almost a year of trying to figure out how to keep up with my plaster pool with cartridge filter (finally got it down after finding this forum), I bought a new house with a vinyl in ground and and a DE filter...... more stuff to learn.

Anyway.... here's my problem. After reading up on how to backwash, I gave it a shot. Everything seemed to go well. A while after I was done I noticed that the water level had dropped significantly. I took a look at the note the previous owner had left on what he did with the pool an he said that the valve was tricky to get set back on filter without water going to waste.

I've messed with it a lot and can't get it to keep from going to waste.

Anyone know of a trick to get it to stop?

I'm guessing the valve my need rebuilt. If so, what all do I need to replace?

Thanks for any help.