I have a spare pump. If the trolley packs in I can still use the backpack too.
I use a trailer with the van, and have just bought a towbar for the car. If the van has to go off the road, I can use the car for work. I know it's belt and braces, but at least I can carry on working. OH! I have a bypass too, just in case the Varistream packs in. Dai