We had a 2003 holiday rambler imperial with a four point system. When we pulled into a site the first thing we would do is dump the air. In our case I would toggle the switch several time to dump it faster. Than I would hit the auto level after it was level I would put out the slides.
Our HR was a great rig and I miss it.
2011 Cameo 34SB3
2014 Ford 350 King Ranch, Trailer Saver BD3 Air Hitch, Mor/Ryde pin box, IS Suspension, Disk Brakes
Nights Camped in 2012 - 142
Nights Camped in 2013 - 186
Nights Camped in 2014 - 185
Nights Camped in 2015 - 231
Nights Camped in 2016 - 162