Just had ag pool installed and filling now.
1. I'm curious about how much backfill material to put against the bottom rail to prevent the sand from washing out. Should I use the yard dirt that's left over - it's full of grass - does that matter?
2. I'm concerned that the installers didn't put the nutgrass killer a full 18" wider around the pool. Should I put nutgrass killer under any additional backfilling I do myself?
3. What's the best material with which to backfill (and cheapest)?
4. After backfilling, in the future do I just put nutgrass killer on top of the backfill?
Thanks so much