You note that suction was not used because the power supply was in the garage - in fact we have installed an external power supply to the manufacturers most recent spec to provide you with accessible power. I gather from the driver that the vehicle is not modern enough to be able to plug into it. It would not seem beyond the wit of man to make and carry a suitable adapter for such situations! You note that inlet & outlet pipes are not clearly marked - they are and if you wish I can send you a photo to confirm - please correct your records. The pellets were delivered at the agreed time & price and to the agreed quantity.