Nat, I think you’d enjoy the RCAF infrastructure world and it’s “adaptive” architecture of piping, cable and additions. You’d also like the colour-coded instruction sign I made last month explaining how to operate a series of post indicator valves for glycol recovery for a de-icing pad. The resulting magenta, green, red and cyan look like a splash pad or McDonalds play land. If I can send you a picture I will.
Nat Chard 
Nat, I think you’d enjoy the RCAF infrastructure world and it’s “adaptive” architecture of piping, cable and additions. You’d also like the colour-coded instruction sign I made last month explaining how to operate a series of post indicator valves for glycol recovery for a de-icing pad. The resulting magenta, green, red and cyan look like a splash pad or McDonalds play land. If I can send you a picture I will.
Jason