Skip, glad to hear it! It is a great system, perfect for small home use, I think. Good throughput too. Even printing a different neg for each print, I can usually crank out about 15 prints an hour.

I forgot about those valves. I usually run water through all three lines to clear the pumps and everything at the end of the night. Usually I do three rinses of the main tanks too. Breakdown and cleanup for me takes about an hour, a good part of that is due to the fact I have no water supply or drain in my basement yet, so I carry in and out in 5 gallon buckets.