meaning that we have ran a lot more gas than we thought and with the auto changeover valve working it switched and we didn't catch it and ran through 2 tanks. It is common practice for all of the people that I camp with to keep one valve closed and then switch when it is out so you KNOW when it is empty.
I just thought this was a super cool gadget that no one else had posted on yet so I thought I would share. I am probably going to order up a pair of them as soon as I get approval from the purchasing director (DW) and see just how well they work. If they work well I will post that up. If not I will post that too
Chris