Took the cover off my in ground pool and the fiberglass wall on one side has bulged inward, creating a gap between the pool wall and the concrete slab that was poured up to it. Its about a 3-4 inch gap. I can now see the outside of the pool wall via that gap. I believe the pool was only two thirds full all winter and the top of the wall was pushed in. If I cut the concrete to get more access to the gravel underneath, and dig it out, will the fiberglass wall fall back into its original position (the pool is now full so there is outward pressure from the water but as the wall was pushed in the fill sank also so there's a gap between the sand and the concrete also).
Basically, should I just fill the gap the way it is, or undertake the much larger task of getting the wall back into position.
Basically, should I just fill the gap the way it is, or undertake the much larger task of getting the wall back into position.
FB shells can/do move a bit based on the pressure applied from either side. In your case, it might be difficult to actually dig down enough to compensate for the support relief already lost. It would be a shame to cut-out concrete coping/decking only to find it didn't work. By contrast, the pool was originally set in place expecting the support for that position from floor up to the top edge. So if you just decide to just "leave it", then you may end-up with a potential bulge or warp from the lower portion to the top. Maybe.
