I can't push down lever on top of canister for the Rena Filstar XP
it feels like theres pressure or something but it wont let me push lever down
A: The quick-disconnect can be stubborn at times. The keys that release the handle locks inside the QD can sometimes wear. If the filter is relatively new then the best method is to pull the QD out and reset in the unit. Then push on the rear portion of the QD while pulling the handle forward. This will usually allow the handle to go down.