Since we were talking about tubing, and I'm brewing today, here's some of my tubing hooked up:
It's from the HLT to the pump, and from the pump just over to the BK for the time being, since I sparge through the HERMS later on (to clean the coil). The other tubing goes from the MLT to the second pump, to the HEX coil, and then from the HEX to the MLT.
I don't switch it around much until I hook up the chiller. When I run the chiller, I fill the HLT with waste water for cleaning, and use some of the tubing for that.
Pump #1 is always my "water" pump, and pump #2 is my "wort" pump. Unless of an issue, like pump #2 seizing up (which has happened).
Shown is more than 15' of tubing used. I didn't measure it, but that seems about what I've got there. Plus, I need a longer length one for my BK/pump/chiller, so I have a couple others waiting to be used for that. I could have used less, and swapped around more, but since I brew inside I didn't want to worry about how much liquid was in the hoses I was swapping!