Industrial Air 072-0030IA Automatic Electronic Tank Drain Kit
Air compressors collect water inside the tank from the humid and compressed air. This water sets in the bottom of the tank causing it to rust out and you then develop a leak in the bottom of the tank. After all the rusty water drains through the leak then the air will, then a significant repair and cleaning process.
Manually draining the water is something we all aspire to do regularly, but it is a quite often neglected task.
This auto drain does the task great. I picked this unit because of the completeness of the kit where it includes the braided drain line and the clamp to mount the unit to the bottom of the tank.
The timer on these units, of nearly everyone I looked at has little flexibility. You can set the on time (how long it opens to allow the water/air to spray out, and the off time which is how long it waits to open again. The off time is much too short - only 45mins max. For occasional use compressors, this would simply either drain the tank completely, or cause it to lose pressure, then come on to build pressure, and repeat daily. So I have my drain controller plugged into another manual timer (the kind you buy where you move the pins to set on/off cycles). So my auto drain comes on twice a day, keeping any latent condensation from temp swings out of the tank.
In my installed photo, you can see it clamped to the leg of the compressor, and I attached a small muffler I had to catch the and disperse the air/moisture that comes out. The tube is supposed to be clear but you can see how it has the rusty color from when I first started using it. I think I will get a new clear tube so I can monitor the health of the tank.
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