I'm trying to think through the idea of running a four keg system through a single tap using a tablet interface. I have a good grasp on the electronics and would piece together parts of the KegBot project with my own modifications, but I'm not sure about the physics of things.
My initial through it to put an electric valve near each of the four keg lines. After going through their individual valve, I'd join all the lines into one, send it through a flow measurer (used to measure how much beer is left in each keg), and then have it go through a single faucet. You'd control which beer you want using a tablet computer.
I'm comfortable doing all the wiring and programming required to put this system together. The problem is I'm not sure if it would actually work. My main concern right now is the leftover beer that is in the line after the electronic valve is closed. I'm assuming that once you turn that line off, whatever is left in the lines will no longer dispense since it isn't being forced out by any CO2. This leftover beer would ultimately be dispensed in the next beer than is poured, but I may be switching between a porter and a wheat, and I don't want an ounce or two of porter in my wheat pour!
I was thinking installing some kind of a very small pump that would clear out the beer in the single line either through the main faucet or through a separate line.
Does anyone think that this would actually work as intended or am I missing something that would mess this situation up?
My initial through it to put an electric valve near each of the four keg lines. After going through their individual valve, I'd join all the lines into one, send it through a flow measurer (used to measure how much beer is left in each keg), and then have it go through a single faucet. You'd control which beer you want using a tablet computer.
I'm comfortable doing all the wiring and programming required to put this system together. The problem is I'm not sure if it would actually work. My main concern right now is the leftover beer that is in the line after the electronic valve is closed. I'm assuming that once you turn that line off, whatever is left in the lines will no longer dispense since it isn't being forced out by any CO2. This leftover beer would ultimately be dispensed in the next beer than is poured, but I may be switching between a porter and a wheat, and I don't want an ounce or two of porter in my wheat pour!
I was thinking installing some kind of a very small pump that would clear out the beer in the single line either through the main faucet or through a separate line.
Does anyone think that this would actually work as intended or am I missing something that would mess this situation up?