Using the excavated fill material for backfilling is a great way to save money for the contractor. He doesn't have to pay a dump truck to haul the fill away, he can excavate quicker and he doesn't have to buy a few loads of stone for the backfill. You end up with a pool deck that will settle in time and drainage around your walls will be non-existant. I would begin to wonder what other corners this guy was planning to cut. We have a pool contractor in town that cuts every corner i can imagine and he always prices approx $5000 - $7000 less than my jobs. It's not because I make an extra $5000 - 7000 in profit, it's that his jobs cost a lot less to do.

Brad
www.waterworkspools.com