It's going to be a 100 degrees here in NC tomorrow and the pressure along with the temp is mounting.
I am approaching the end of the dig (DIY) but seem to have a difference in opinion with my sub who is going to be putting in the pool bottom (to big of a job for me).
Seems he is of the opinion of two items:
1) After the walls go up I should plumb it in then lay the concrete footer (collar) around the perimiter with the PVC encased in the concrete.
2) My backfill should be the excavated clay (it's NC, it's ALL clay)
I am of the opinion that:
1) I put up the walls, put the footer in and lay/brace the PVC on top of the concrete footer.
2) Backfill with stone and include put an 8" PVC pipe with lots of holes (wellhead) into the decking along with a pump to take out any water that sits behind the walls. I am leaning towards the stone backfill (even though it will cost me) to prevent having to wait 4-6 weeks for the clay to settle to lay the deck as well as to prevent the deck from cracking from additional settling of the backfill
The sub says my method will cause the liner to "float like crazy" but I don't get it. My understanding is that the float is caused by equal water pressure from both sides of the walls, but a stone backfill that has a way for the water to get out should not cause this. Also, why encase the PVC plumbing in the footer? Seems to me that has the potential to crack the PVC piping more then laying it on top of the footer and backfill (carefully) with stone
So, what is everyones take on this?