Autofill is an option on MH's. When you hook up to water & turn it on, It will fill up your fresh water tank. Mine stops at 3/4 full. As long as Autofill is turned on, your tank will stay at the set level. I like to use this feature at rallies where you have to daisy chain the water hoses together. I'll turn on autofill at night before going to bed. Turn it off in the morning. this way I have full water pressure (at least what the pump puts out) in the morning when others may be trying to shower. The pressure drops when multiple users are tied into the same water spigot.
"Sometimes I wonder if the world is being run by smart people who are putting us on, or by imbeciles who really mean it." Mark Twain
AIR 22749 WBCCI 2349 NOVA TAC TN-6
1989 345 LE Classic Motorhome