Try not to take your CMM's air from the lowest point in the line. Take the air above the lowest point preferably in a straight run down towards the floor. This will allow much of the water, oil and such to fall past your CMM air. You will how ever need to have a way to drain this lower section as just letting it fill up defeats the purpose. Running the line into a 5 gallon bucket with a lid will not only contain but also conceal the contaminates and allow you a means of removing them from the area. Just put a manually operated valve between the CMM air and the bucket "that you open to drain daily" and you will help improve your CMM's air quality.
