In closing the pool last fall I think I did a really good job of clogging the sand filter. I thought I was going to waste, bypassing filtering, but I must have been incorrect because it stopped moving water after a while and there were a lot of leaves in the pool. We took the multiport off but it was clear. We threw down our toys and went home. Soooo, now comes the time to make some decisions. Do I vaccuum out the old sand and put it back in or replace it?