i have the clave tightened down as far as I can get it by hand, and so the next step is to use the Rack & tackle. this process takes some time.
I replaced the rubber stoppers with Wax, and this seems to serve fairly well (the last attempt failed due to rubber residue & scrapplets fouling the threading on the inlet Check Valve. wax = no particulate residue = clean threads = success) . however, with tightening the Clave, the contents are slightly pressurized (Volume decrease = Pressure increase if contents are unchanged), and this causes a slight leak. not enough to be a problem, but in earlier versions with the non-leaky rubber, I was able to leave the clave in the rack overnight, saving time while in the closing process. I no longer have the luxury to spend an hour or so separated by hours to finish. I must schedule a window of opportunity to close the bitch in one go. Hopefully, it will take less than the expected three hours.