Ledge LoungerSignature Chaise - Inside Pool & Sun Shelf Lounge Chair - Designed for Shallow Shelves Up to 9” - Compatible with All Pool Types - Poolside & Sun Deck Tanning - Set of 2 - Light Blue

I bought two of these chairs recently, they look stylish but regardless of being in water less than 9" on our sun shelf and having filled them every which way.until no air bubbles come out these chairs tend to float and move any time there is water movement from kids playing or whatever. I mean come on, it's a pool!Even though they advertise these chairs for water depth of up to 9" they only stay put in flat calm conditions and my takeaway is they really aren't designed for water that deep.Also whomever selected the fill hole locations needs to go back to engineering school.