The way I look at it is, if your going to go that far with the plumbing, you should know how to tap into your water and waste lines......
You know..If you want it done right, do it yourself.
So I would learn the about the "branches" not just the "leaves".
I do alot...ALOT of automation....and I still will throw a valve that I SHOULDNT.
One thing that I learned moving nuclear fuel is the touch method. Touch the valve , say outloud what its for and then turn it. Works well....