air compressor plumbing

I would NOT feed the general shop plumbing FROM a regulator. Either put the regulator where you need it, or supply it with quick connects so you can jack it in where you want it for specific tools. Most tools do not need a regulator, impacts, etc, and even air grinders/ sanders which you want to "tone down" a bit can do will with a simple control valve inline near the tool

Really, most important tools needing a regulator is stuff like a paint gun.
Before I only had my compressor going to my hose reel with the regulator prior to that. Now I have one main line going to my hose reel which is used in my shop so sometimes I need to change the PSI depending on what I"m doing. My other main line is going out to the "storage" area and will pretty much only be used to put air in tires so I'm not regulating that side.