I furnished mine with a spare set of filters that are supposed to be changed every 1-2 years. Not sure on the membrane. I'm not sure there are enough of them out there and running to make that judgment. You could be right, or better.. Ya betcha ya. I'm not sure if knowing that beforehand would have swayed me with the other option being driers and their upkeep. :) TD
Tom - It was my understanding from one of the manufacturers of N2 generator systems that you need to re-invest another $10,000 every ten years or so to maintain the system. I apologize for lack of details on that, but hope this will spark conversation from those that may know for certain. Mark A. Sornsin, P.E. _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
