don't let us warm up this six months old thread too much. Maybe too much sarcasm from my side. (Think Eric understood how I ment it, and you're a bit stronger and more serious about...) My very last comment in this thread:
In all known public pools in Germany it's mandatory to take a cleaning shower with soap before entering the pool. Not sure if this will guarantee there will not be any pee in the pool. Although nobody will like it in any way.