Good check list herk7769. I would add 1 step. BEFORE REMOVING THE CAP VERIFY ALL DUMP VALVES ARE CLOSED. I had a case where someone pulled my black and gray dump valves. I was lucky I noticed them before I removed the cap. I closed them and used a bucket to catch what was in the lines. Could have been a disaster. I like the idea of the end valve, going to look into that.
2010 Rockwood 2604SS
2008 Silverado 1500 LTZ 4X4
Great Wife and Idiot Yorkie
True Friends are like diamonds, precious and rare.
False ones like autumn leaves found everywhere