We only dispense by the pint, and the volume at its normal peak does not seem to tax the system too much. However, during our big events, we put a serious strain on the system
Currently the beer pumps provide beer from the cellar to the second floor (about a 27 run, straight up) and to the first floor in our north building (about a 100 foot horizontal run with a 10-12 foot rise). The problem is that one set of taps or the other will occasionally act up, either inconsistent flow on the 2nd floor (turned down pressure on pumps), or high pressure on the 1st (turned up the pressure). In general it runs well, the first situation preferable to the second.
I am really just trying to tune the system to determine if any fluctuations in the consistency (say a beer style or or serving line that wants to foam a lot) are from the system, or other factors such as co2 levels, grundy cooler temps, head pressure, etc. We serve all our own beer and we have dozens of styles, so there are lots of variables. However, we can can control carbonation, temp, pressure as well as most of the other variable.
As I said, its not a serious problem that results in a lot of spillage, but it would be nice to be able to eliminate it without constant trial and error when it does arise.
Also, our pumps run at about 24psi.
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