Hi folks,being a complete novice I'm finding "The Trucks" many facilities somewhat baffling.Take the plumbing,I've had the old girl for 4 months and have tried a couple of times to get water from tank via pump and tap.I switch on pump,which starts to hum,hear water running somewhere & discover it running down from supply pipe(s) under sink into bottom of cupboard.This causes me much distress,does it need venting?Also,filled tank up and added sterilising fluid(getting technicle),but can find no way of emptying fresh tank either.I hope you lot are VERY patient! Yours in anticipation.Chris,the one fingered typist.