I've got an old Master Plumber (True value) whole house water filter setup in my garage right after my pressure tank, and lately when I change out the sediment cartridge, it's become increasingly difficult to loosen the filter housing to get to the cartridge. I do eventually get it, while trying to put minimal strain on the pipes (fortunately, I can brace the pipes with my shoulder as I'm trying to unscrew the housing), however it seems to be more difficult than say a couple of years ago. I've taken to greasing the O-ring with silicone grease after loosening it, but it doesn't really seem to help. I have heard some people say that a strap wrench on the filter will be much better than the supplied filter wrenches that just grab the fins. I also always open a downstairs faucet before attempting this job. Does anybody have a suggestions as to what could make this task somewhat easier? Thanks in advance for any help.
Tony
P.S. Around a year ago, on advice from a friend, I lubricated the threads of the filter with Vaseline, not silicone. Could this be helping creating a problem now?