How much time does it take to drain the fluid out of a dripwell on one airset? Not much, but consider that most plants have hundreds of airsets on their control valves. The time adds up. This is time you could be using to do more preventative maintenance. A simple solution is available. Convert your airsets to automatically drain. A retrofit kit is avaialble for the 67CFR, 67CFSR, 67DFR, and 67DFSR. If you are ordering a new unit make sure to order it with the automatic drain option already installed.
Links to product pages of Fisher filtered air pressure regulators that have automatic drain options:
67C Series
67D Series