How to Drain Your Ingersoll Rand SS3 & SS5 Tank (and Why It Matters)
Draining your air compressor tank might seem like a small chore, but it’s one of the most important maintenance steps for your Ingersoll Rand SS3 or SS5. Regular draining helps prevent rust, maintain air quality, and extend the life of your equipment.
Why Drain the Receiver Tank?
As your compressor runs, it pulls in moisture from the surrounding air. This moisture condenses inside the receiver tank and, if not drained, can lead to:
- Internal rust and corrosion
- Reduced tank strength and safety risks
- Moisture carried into your tools or air lines
How Often Should You Drain It?
For most environments, Ingersoll Rand recommends draining the tank daily. In humid areas or heavy-use shops, you may need to drain multiple times per day to stay ahead of moisture buildup.
Step-by-Step Draining Process
1. Turn Off and Depressurize
Switch off the compressor and unplug it. Slowly open the tank drain valve to relieve pressure before fully opening to drain moisture.
2. Open the Drain Valve Completely
Allow all accumulated water to drain out until only air is coming out. You might hear a hiss as residual pressure is released — this is normal.
3. Close the Drain Valve Securely
After draining is complete, close the valve firmly to avoid leaks when the system is repressurized.
Optional: Install an Automatic Drain
If daily manual draining is inconvenient, consider installing an automatic drain valve. These open periodically on a timer or when water accumulates, helping you maintain a dry tank with less effort.
Protect Your Investment
Neglecting this simple step can lead to serious (and expensive) problems down the line. Regular draining is an easy way to keep your SS3 or SS5 safe and reliable for years to come.
Want more maintenance tips? Check out our Air Compressor Maintenance Checklist blog for practical ways to protect your compressor.