Can someone advise me. Im thinking i would like a on/off tap on the pole or as near to the pole as poss,i dont want to keep on going back to the trolley to switch off and on, idealy i would like a tap/trigger on the pole but fail to see how this works as the microbore needs to go up and down the pole so wouldnt be able to be attatched to any fitting,is there anything out there on the market folks?