Thank you. It's our intention to carry a small motorcycle on the rear just in case. We do carry enough supplies and water for at least 1 week including camping and keep warm gear along with backpacks in case we need to hike out. Living in the west near the desert, it's not uncommon to hear of someone lost or stranded and dying of lack of water. Happens several times a times a year through out the west. Think I'll go with the 120 psi pump. Someone sujested the two pumps but I wans't real sure of it.