In 2007, I replaced the flapper valve with a home built part. I use a piece of roof flashing rubber to copy a new flapper and transfer the weights to it. It's been in use for 9 years. I pull it yesterday due to overhaul of the head and found it was as good as new. The joker valve and bottom flapper were both deteriated and deformed. It goes to show Jabsco used the wrong material for their parts.
Roof flashing rubber boot is where the toilet stack goes through the roof to vent. I figure it's in pretty tough environment and in direct contact with tar, it must be pretty robust.
Roof flashing rubber boot is where the toilet stack goes through the roof to vent. I figure it's in pretty tough environment and in direct contact with tar, it must be pretty robust.