4 ms·
I think the answer varies widely based on the underlying geology and what you're building. Ancedote: My neighborhood in Lousiana was a land-filled swamp. Build
by munificent 3y ago
I think the answer varies widely based on the underlying geology and what you're building.
Ancedote: My neighborhood in Lousiana was a land-filled swamp. Building a single story house there required driving dozens of pylons in to keep the house from sinking into the dirt. When we put a pool into the backyard, it had to be partially filled with water while the concrete was still hardening because otherwise the surrounding water table (something like two feet below the surface) would have popped it out of the ground.
This is probably less of a concern on, say, the Colorado Plateau.
- nocoiner 3y agoSounds like your geography is very similar to mine, fellow gulf coaster/swamp dweller. I know my house sits on a bunch of piles as well, though I don’t know how deep they go. I would guess it’s likely less than 50’, though maybe not.
- 8n4vidtmkvmk 3y agoWhat happens if you need to empty and refill the pool?
- atdrummond 3y agoYou can do that once the concrete has hardened and set. Just not before.
- munificent 3y agoNo, as far as I know you can't. The pool is essentially a boat floating on the water table. If you remove too much weight from it, it will float and pop up. It may be that the surrounding concrete decking is strong enough to hold it down, but I'm sure none of that was designed to hold a pool down against an upward force. I think you probably just can't safely fully drain it.