A observations and questions ?
I've considered doing this in my shop over the years but one problem I have is occasionally the heat goes off in the shop and the temperature goes below freezing. This doesn't seem to bother flex airlines but I've heard it is a problem with hard tubing plastic, copper, or steel.
I see that you have installed drains at all the logical drop points which should help with getting the water out of the system at the end of the day.
What size id pipe are you planning to use?
I would suggest using ball valves as there is no pressure drop as found with other types of valves.
Yes add pressure gauges at outlet ends look for the type of filters that have a tap for the gauge after filter.
Look for water traps that have ball valves or replace the existing small twist type drain, small ball valves are so much easier to use, I added and extension to the drain on the bottom of the tank and a small ball valve much easier to drain the tank at the end of the day.
Have you bought your compressor? If not you might want to check some of the MLU threads on size of compressor for sand blasting if you plan to do much of that.
Another question I have is noise of the compressor, it drove me crazy. When I move my shop out of the garage into a purpose built barn (need something big enough for the C60S) I left the compressor in the garage and ran the compressor line under ground through 2" conduit to the barn no noise. I just fed large flex airline through the conduit. It has frozen a few times but the quick fix for that is stick the exhaust from the shop vacuum in the heat shop into the end of the conduit and in 10-15 minutes air starts flowing.
One last question/request- once you get the system installed do let us know how it works out.
Cheers Phil
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