Many companies that have compressed air, have timed electric drains on their tanks.
These auto drains are convenient because you don’t have to remember to drain your tank daily. However, the convenience is a double-edged sword. They are SO convenient that the person maintaining the compressor might forget to maintenance them.
These drains have a strainer that needs to be cleaned.
The whole process should only take a few minutes, unless the nut is stuck.
If the mesh is gone, you can pick some up from a local hardware store, cut it to size, roll it into a cylinder and put it in the strainer.
If you don’t have a strainer – get one. You can pick them up nearly anywhere compressor parts are sold (and they are cheap.) Just check the psi rating to make sure it meets or exceeds the psi rating of your tank.
This simple step can prevent a drain failure. An unnoticed drain failure can be a disaster – the tank filling with water, shooting downstream, damaging all of your equipment.
Never skimp on your maintenance – you’ll pay for it later.