*’Salting of machines’ occurs when salt h2o is poured or injected to the coin chutes or validators of vending machines for purpose of cheating machine. Again and again the act of ‘salting’ ruins the coin mech or validators and renders it unusable. Salting of machines, coin mechs or validators https://cesarsaehj.webbuzzfeed.com/34300359/snack-vending-machine-with-nayax-credit-card-reader-fundamentals-explained