Thanks loads Cruzer - That's exactly what I needed and the first place I've seen that actually told/showed what was on the inside of that canister. Looks like it shouldn't be as difficult as I imagined from looking at it from underneight. I was afraid the air hoses would have to be removed also, and like anything I remove that runs air or water thru it, it will leak when I re-install it. Thanks again for the link.
2004 Meridian 36G