sorry to folks who were once interested and perhaps have lost interest in our rainwater catchment system. we have finally finished and taken photos of what our system now looks like. more information is found on our website (since i don't know how to post photos here): http://wastenotwagon.wordpress.com
. in a nutshell, we used pvc pipe (cut in half) as our gutters - running along both sides of the bus. those are channeled into the bus and the water is stored in a 55-gallon barrel. we have gate valves to prevent overflow. eventually we hope to have a hand pump for extracting water. right now, it is a closed container, holding water.
thanks for your patience and interest.
the waste-not wagoneers.