Selecting the right 12 volt water pump for your caravan, bus or cabin in the bush is as simple as getting a 12V water pump that will service the number of taps (outlets) you have. EG: Toilet, shower and sink = 3 outlets
The most popular all round 12v caravan water pump for the budget conscious is the Escaping Outdoors FL35 which will service up to 3 outlets. It is a very close match to most caravan hot water units.
The Jabsco 12 volt Parmax 3.5 is equivent to the FL35 in output and has the addition of a built in bypass within the pump which means you rarely require a pressure tank with this caravan pump. Also available in 24V.
The Shurflo 3.0 comes in both a 12V & 24V model and also has an adjustable by-pass valve and advanced technolgy. This caravan pump will rarely require a pressure tan.