This has probably been beaten to death but everything i find on here is for multiple drops..I would like some advice and possibly photos on a install. My compressor sits between the 2 garage door, about 4 feet of spave between. I mounted my hose reel just above..now should i just run a flexible line from the compressor to a filter and regulator then to the reel. or should i do like a bit of black pipe with a drain?? before or after filter regulator?? thanks