As I started to fill my pool for the first time this year...water level got normal than normal BTW, there are bulges in the side of the inside. When feeling them it is obviously foam. I am guessing it is the cove foam from around the bottom or if could be something else? The bulges are perfectly uniform in a line and not in every spot, although they are at the same depth. Also, one of them is angled down the side at a 45 degree angle.
Fix advice? Drain the whole thing? Or drain and low enough to try to manipulate the foam down from outside the liner? Also our pool is buried about 24-30 inches.