Dave, is there any issue with "maintenance" in regards to this sort of setup? Take for example the SMC, how long are the pumps supposed to last, the lines, are any of the pieces of these setups in need of some sort of maintenance or replacement within a period of time? I'm thinking like 2-3 years, or are these systems a, "use it for a few years and buy a new one"?
Thanks. (btw Dave, you and Donkey are awesome)
Michael