rain barrel

I want to use a 50 gallon plastic barrel to run a toilet and sink. Is this possible? What kind of pipe and pump should I use and How do I hook it all up? Does anybody have a diagram.

You might find some ideas over here:

www.terrylove.com/forums/showthread.php?t=12632

I use a rainbarrel at our camp. It is a plastic drum, about a 55 gallon, that has conduit running into it from the spring house up on a hill, then, it runs down conduit into the sink in our kitchen. Works real well. Just once in a while got to go clean it out or fix the spring house. Nice soft water.

tank

An RV "demand pump" which operates when the valve opens would be the easiest route.