A while back I posted because my sump pump would only work
sporatically. Sometime it would, sometimes it wouldn't-- which could
be a problem. After much analysis I discovered that the simple reason
was because the parts stuck sometimes. I sprayed them with silicone
and it worked fine for a long time.

Suddenly I noticed in the most recent rainstorm that it stuck again. I
sprayed silicone. However, it continues to stick. I can get it
working by hitting it with a clothes hanger, that seems to get the
parts moving. However, I can't always be around to do this.

Any suggestions for getting this thing going again?