Quote:
Originally Posted by A930Rocket
Why would this guy have so many tanks of gas in different colors? I take it they have different gases in them.

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They appear to be refrigerant tanks. Each refrigerant has a different colour code.
The tanks are being transported improperly and in reality they should be ticketed for it. The relief device on the tanks is on the top and it needs to communicate with the vapour space. He is transporting them top down on his rack.