How often do you drain your air compressor?

RustyRatRod said
On the subject, does anyone use one of those automatic compressor drains? I just wonder how they work.

I’ve got an automatic drain off Amazon but it goes off every hour at its longest setting. Way too often. I’m going to plug it into one of those mechanical timers and do it once a day. That should be enough with the after cooler I have plumbed in between the compressor and tank.