Other contributors have said "What happened to sani-flush?" is the same question as "What happend to Sani-flush?" If you believe that these are not asking the same thing and should be answered differently, click here
Sani-flush was removed from the market caused by dangers to users and the environment.
Office Depot still has it on their website, though I don't know if it's really in stock. It;s still on Amazon.com but listed as "currently unavailable."
to start with if you are flushing because something other than DOT approved has been introduced to the system stop and change all components that have rubber in them ( for safety sake) if not then...