After about a hundred dives or so, my tank valves were getting harder to turn, which made valve drill difficult. When I took one apart, I found quite a bit of gunk built up between the bonnet nut and the stem. My question, how and how often do you clean your valves, and do you replace all parts listed in the manual, in particular, the plug-seat assembly, and the bonnet gasket, every time? I found a cheap source for those parts on Aliexpress, but I still don't want to waste perfectly good parts.
feng
feng