I am writing today to try and get some advice on a pool that lifted while i was acid washing for primer and paint. While i have left this pool empty for weeks at a time i think what did me in was removing the deck around the pool and some heavy rain we got that went right to the bottom of the walls. All said and done the pool has lifted the deep end 4 - 8 inches.
Things i have tried -
Rented a mini and dug a 12 foot hole outside of the pool on the deep end to pump out ground water. - pool didn't budge
Got the mini for another day and dug all around the walls to where the void starts.... no luck either -
added 10,000 gallons of water (which i have to get trucked in) - No dice - this was an attempt to add weight
If i rented a big excavator and dug 10 foot all the way around the pool would it HAVE to settle back down? meaning would this almost guarantee a fix ?
can i "grout" the voids with LSM and keep the height?
35,000 gallon Gunnite pool
30 + Years old
No hydrostatic relief valve
Plumbing all built and poured into the wall
Thanks for any advice