........ and pulls anything off your sister.
We've got the A class vision 647 but the water tank is in the same place by the sound of it.it is a nice model ours is a 2012... the water tank on ours is under the dinnet seat, remove the cushions and unscrew the big black plug, stick your hand in and there is a T lever in the bottom, lift it and pull it out of its hole. job done. i open all taps and let them drain back then i shut em all off and one at a time from each tap open ( put mouth over the spout and blow) blow out residue. the taps have a ceramic piece in the body and droplets of water get stuck and freeze and bust the mechanism ( yep happened to me first winter ). also i drain the pump bowl ( under the sink on the floor ). oH and the heater.