I've been home sick for three days straight. Nasty cold. Good news is that I got the air system running yesterday! I tore apart my pump and gave it a good cleaning. Interestingly, the piston springs are common steel, not stainless, and there was quite a bit of fine rusty dust that is probably due to the pump being located in a high humidity area. I sprayed the whole thing out with canned air and wiped it down, put a couple of drops of Tri-flow on the springs (yes, I know these are no-lube pumps), put it back together and got it all hooked up. 24 fish tank valves, plus 4 1/4" valves that I am going to experiment with later. I went with 1 1/2" pipe, because I had some in the garage that needed to be used up. The black behind the pump is thick rubber. Let's see if this picture thing works this time. I'm hoping to have some tanks up by next weekend. I've got to get the rest of the fascia boards put on, and get it all painted first.