I need to replace the caulking between the pool cement deck and coping but the gap has gotten pretty wide over the years. My pool guy said we should use a non-leveling caulking but everything I read has a pretty narrow maximum opening. Would deck-o-seal fill a gap about an 1" - 1 1/4 wide? If not does anyone know what will? Should we go for non-sag or self leveling and why? Thanks for you responses!