I clean/replace the joker valve routinely. I keep a couple spares on board. You can usually clean it by soaking it in vinegar overnight.
-- Dennis C. Touche' 35-1 #83 Mandeville, LA On Tue, Aug 30, 2022 at 5:36 AM StrightR--- via CnC-List < cnc-list@cnc-list.com> wrote: > Has anyone experienced water back flowing through the head despite dry > bowl left in the closed position? Raritan head. Assume it could be a > defective Joker valve or flapper valve. Anyone had a similar problem and > if so what was the cure. > > > > Thanks > > Rod >