How often do you drain your air compressor?

MoparMike1974 said

You guys who dont drain their tank on a regular basis need to go on youtube and watch a few videos. Search for air tank explosion. Most of these are caused by internal corrosion caused from not draining them.

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Sure they're caused by rusting out, but remember without oxygen **** can't rust. So if the bottom is fully covered with water it won't rust, it'll rust just above it. If it's wet yet drained, it'll still rust! The only real goal of draining is to keep full capacity of your tank and to try and keep water out of your air tools and paint gun.