Air compressors are handy for DIYers ... Start by unplugging the compressor. Then, open the drain valve at the bottom of the tank to depressurize it. Next, remove the 1/4-in.

open the valve, and let water flow out to a place from where it can drain safely. You’ll need to let air into the tank to displace the water, and in most cases, you can do this by opening hot ...