Warm water mixed with soap from dispenser is the best cleaning
solution for all B-40 or B-42 dispenser parts. Pump warm water through
the vessel and valve periodically to flush out any contaminates or dried
soap residue. NEVER USE ABRASIVE CLEANERS.
Periodically give the dispenser an overall cleaning. Remove the soap
vessel by pushing back on the vessel stop spring tab and sliding it up off
the wall bracket while the lid is open. The lid can then be removed after
removing the soap vessel. Always replace the lid before mounting the
soap vessel onto the wall bracket.
Do not disassemble the valve. NOTE: If for any reason the valve
becomes nonfunctional or the soap vessel is damaged, a new, complete
soap vessel assembly must be ordered.