I drain mine at the end of the day. Ed
Better than nothing. Depends on how often you use it. Personally I drain it the next time I'm around after the tank cool off.I drain mine at the end of the day. Ed
Every year, whether it needs it or not, and if I remember to.I drain mine at the end of the day. Ed
I can get like 5 or 6 ounces out of mine after just a couple run cycles. I hooked an out hose to my and empty it into the sink so I don't have a rusty mess all over the floor.I think 95% of this is governed by where you live, and the relative humidity there. I live in the desert Southwest, and NEVER drain my compressor tank, EVER. But the relative humidity is well under 20% most of the time, and can be as low as single digits. So there is no need. The air going into it is bone dry.
I noticed the OP is from Houston, one of the most humid cities in the nation. I don't think you can drain it enough under those conditions. And if possible, look into some type of dryer.
Spray it in through they large hex opening before they screw it on.I'm surprised they don't coat the inside of the tanks with some kind of anti corrosion spray.