seltzer water backflow

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    McCann Big Mac Carbonator: Backflow Valves Keep Blowing Out

    I have built a homemade (seltzer) water machine with a small corny keg and the Mc Cann tank in a small fridge under the house (directly under the Kitchen). The Mc Cann motor sits on top of the fridge. After about a year the Backflow preventer on a rebuilt Big Mac blew and c02 was pushing back...