I remember seeing somebody with a keezer that displayed, using lights, the approximate amount of beer left I'm each keg.
Now, I can see how this might be done using float switches (at, say, every 20% height increment), but not only would that require a LOT of switches, but it seems like having all that stuff inside a keg would be pretty unsanitary.
So I'm wondering if anybody knows how this might be done in a simpler, more sanitary manner than 4-5+ level switches in every keg. And if you've done something like this, I'd especially appreciate any insight you might have.
Now, I can see how this might be done using float switches (at, say, every 20% height increment), but not only would that require a LOT of switches, but it seems like having all that stuff inside a keg would be pretty unsanitary.
So I'm wondering if anybody knows how this might be done in a simpler, more sanitary manner than 4-5+ level switches in every keg. And if you've done something like this, I'd especially appreciate any insight you might have.