Questions about water system:
#1) I have seen various schematics/diagrams (both are included in this thread, one is the same as i see in this linked thread
), one that shows the city water hook up placed after the on-demand pump, and one that looks like its pressurizing the holding tank (which seems like a bad idea?). Which style do you use? I want my city hookup to enter the water system after the pump personally, but does a Sureflow need a "back flow prevention valve" or does the pump handle this alone?
#2) does it matter if the on demand H20 heater is first, last or in between? These diagrams also conflict on that, one shows it last in the circuit, one shows it T-ing off first.
#3) What is the "anti-freeze access point"? Do you use this in your bus?