santacruzpool
Gold Supporter
We don't really use any - we have several neighbors who throw them for their dogs in the lot directly next to us - so I am sure one got inside the fence and rolled into the vault.I see a NO TENNIS BALL rule in your from now on!!! Glad you got it out!
I think I will make a little mesh screen to cover the opening...sort of like a downspout gutter protector.