We're signed our contract, but are waiting to be scheduled for an install of an inground fiberglass pool. We've been quoted a sand filter, but i'm concerned about backwashing. The two suggestions seem to be watering the lawn with backwash (which i don't want to do as we're going to have a salt water pool), or feed it into our sewer line (which I can't do because we're on a septic system). I could plumb 200+ feet worth of PVC to the back of our property and dump it out there, but honestly if I didn't have to do that work, that would be nice. Should I investigate what it would cost me to swap to a cartrage filter? (I figure I can clean that with fresh water, so that's not an issue). Am I going to be happier with a sand filter and just need to suck it up and run the line? Thanks for any suggestions/comments.