Can some confirm that I should have an anti syphon valve on the fuel return line. Judging by the fitting i took off i don't think there was one to begin with. Also, would all that white stuff be from ethanol blended gas? I'm worried about the fuel pumps and the rest of the fuel lines now but I'm gonna run the boat without changing anything except the fitting. Fuel pickup looks good and clean. I'll clean the connectors on the fuel level sender.

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