Fresh water tank oveflow lines will not stop leaking

dedmiston wrote:
Solution Number 1: "Yeah, that happens sometimes with these units. To break the flow of the siphon, just hold the end of your compressor hose against the vent line and give it a couple of short blasts to clear the line."

That worked just OK, but I knew it was a horrible idea to blast air into the tanks and risk bursting them.