The Dreaded Anti Siphon Valve

[Silvertip]

Re: The Dreaded Anti Siphon Valve

true what your saying but the line has to be lower than the tank Silvertip you said "The ONLY time a fuel system would be safe without an anti-siphon valve would be when no part of the fuel line is NEVER below the outlet of the fuel tank. that is almost never the case. your wrong in my case i have a 1983 thundercraft and the fuel tank is in the front of the boat so the fuel line goes up from the tank runs down the side of boat to the back of boat then it's runs down to the fuel pump so with no anti-siphon valve if i had a leak in the fuel line the fuel will not leak out because the fuel line is above the fuel tank

You missed the point in my statement that said "NO PART OF THE FUEL LINE" is below the outlet of the tank. The fuel line doesn't stop when it meets the engine. It goes inside, into the pump, then to the carbs. Of course at that point it is below the outlet of the tank. That is also why I said "ALMOST NEVER" is this the case.