Great pics and progress. I have the same PVC pier setup. After the pool was complete and backfilled, it was two weeks before the pad was poured. I ran a soaker hose around the pool, on and off for 1 1/2 weeks. Had to move many wheel barrows of dirt to fill around steps, spa, skimmers. The whole fill sunk about a foot. Just something I did (I'm a little OCD).