I've had other automatic siphons before and even have one that I keep in my shed where most of the brewing/fermenting takes place. I bought one extra to have next to the bar where I serve home made beer. The siphon worked great and sealed well enough to pump and suck as expected. The only small downside is that the hose is very narrow. Even after dousing the end of the tube with very hot water to make it a little softer and more flexible, it still barely moved. This can be useful to prevent air from entering the tube to the wedge. The downside, however, is that the other end of this hose is even more difficult to fit over the opening of a plastic faucet (to pump sanitizer into the faucet and through my exhaust lines). A hose with a slightly larger diameter is more convenient to use.
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