Can't sleep thinking about these points, as happend yesterday;
Item 1: An irate guy on the phone saying his DI trolley is not running keeps coming up as p5 on the controller, so one of my guys talks him through calibration etc, rings back even more abusive saying his loosing £100's,still not working, we spend quite a long time trouble shooting, THE REASON he decided he didnt need the inner cartridge so filled the 3 vessels up with resin (a tiny sorry) 1/2 hour waisted.
Item 2: An irate guy shouting down the phone regarding his backpack pump not delivering enough water, we ran him through air locks etc, it continued doing it, he told us he was loosing 100's, we asked him what he was plugging the hose into, he said a 10 meter extention, we said is this free of holes and crimps, he said OF COARSE IT IS, we invited him to come into the shop, as he was local, came in, in a huff, THE REASON there was a hole in the hose, (a tiny sorry) 3/4 hours waisted.
Us suppliers have these issues too!