The clear canister should screw pretty easy until it hits the top - is yours hard to turn?
check the seal or put a small amount of vasaline on the rubber O ring
Does your filter have a top and bottom seal as well as a O Ring seal for the canister?
If not I know WalMart sells a whole house filter canister (same as in my trailer) maybe replace the filter housing and canister with a new style
2011 Rockwood Mini Lite 2306 - Matt
2004 Dodge Ram 1500 Qaud Cab 4x4 with 35" tires and 3.92 gears, Dynatech Longtube Headers & Fabtech 6" lift + Superchips with shift Tuning
Nights Camped 2011 (37) - 2012 (16)-2013 (2) -2014 (5) -2015(0)
USMC 91 - 95 - F/A-18 Aviation Ordnance