Thanks for stressing your point Joe. With my expansion I'll potentially be at an occasional critical storage situation. My plan is to replumb my permeate tank as an overflow for my 3,000 gallon raw sap tank giving me 5,000 gallons at the sugarhouse. Sharing your experience has motivated me to get that done before the season starts. Now all I need to do is to remember to set the valves right at every process.
Ken