Jgray152;2797503; said:You are the first to report this issue that I have seen. Others have said the cover gets warped and cracked and then they make a thread asking why their Fx5 leaks or makes bubbles. Afterall, they are only plastic. They don't need much pressure and they WILL NOT break if you tighten them finger tight, just a big snug is all you need.
There is an oring in the cover which seals very well with only a snug fit. All those screws are only to keep the lid from being forced up or loose by the 190+ pounds of pressure that is put on the cover after the pump shuts down.
Buddy i tighten bolts for a living!!! i know all about that stuff, and the orange cylinders are total crap they should be galvanized steel like the bolts their attached to!. i didn't even have the nob against the lid when the orange bastard broke! i still love love the filter though!