gotta go to dinner now.just checking if you seen post,looked at a pummp on my shelf-cut three filters apart and with a depth guage took readings and since iknew only thing i changed was the filter that i knew when i installed it looked too cloose,screw in threads almost even with rubber gasket-would work if pumps were deeper groved-bypass ruuber all over the place short style for my BB from now on!lets hope next event still o.k.