Our new pool has been "bubbling" since installed 3 years ago after heavy rainfall.
Coping installer blaming pool shelf design.
Pool manufacturer blaming coping installer.
PB not sure the problem.
This pool owner at wits end!
Facts:
-tumbled coping without cement in-between
-deck-o-seal between coping & decking
-freeform vinyl pool
-only evident after heavy rains
-will happen intermittently around all areas of pool
-subsides after a day or so of dry weather

Any ideas as to what this may be?
Thanks,
Beth