I just got a new air compressor for occasional finish nailing and tire inflation. I understand that I need to open the bottom drain to let out any condensation (i.e., [this question][1]) after each use.

Should I also store the compressor with this valve open? Is it a bad idea to do so? If it makes a difference: I only plan to use it once or twice a month and live in a very dry climate.


  [1]: https://diy.stackexchange.com/questions/3268/should-i-release-the-pressure-out-of-an-air-compressor-when-it-is-not-in-use