We have excavated, installed electrical, plumbing, re-bar and have gunited our new pool currently under construction. We have ground water that appears to be leaching in at the deep end. We have a hydro static line (the plumber installed) we will be testing next week to make sure it works other wise the plaster contractor said he would need to jack hammer a hole the size a depth of 2 - 5 gallon buckets at the bottom of the deep end, fill with crushed rock then concrete over the hole. Will this stop ground water from continuing to leach in the pool upon completion of plaster and the life of the pool. Or do we also water proof the gunite now prior to plaster?
SORRY for delay.
First every pool is designed according to the site conditions, if the water table( sub surface water) is above the lowest portion of the pool the design of pool structure has to be done accordingly. Since from what you have written it seems that the water table is above and during structure design its not accounted for ground water and structure is weak.
I advice you to get the structure design verified by a structure engineer.
Since any amount of waterproofing would be a temporary solutions only.