Gallon jug of water will do an ok job of rinsing. Yu can also throw a plastic watering can in an fill it with the plastic jug if you want a gentler rinse for things like reels, but I wouldn't bother. Another option is a solar shower. You can rinse yourself and your equipment
http://www.cabelas.com/product/Relia...3361325&rid=40
A 9' two piece rod is helpful when you need to hide a rod in a vehicle. There are ways to make it virtually disappear.