Sue,
I must be missing something here. Why can't you just run the hose to the full barrel, turn on the tap until the hose is full, then unscrew the hose at the tap and let most of the water run out via gravity?
That's
much too easy...how am I ever going to be able to pull a muscle in my back, run over my big toe with a 300lb. barrel, teach my kids several new swear words and convince myself death by dehydration is preferable by doing it your way? <img src="/images/graemlins/grin.gif" alt="" />