Dual Pressure Tank Installation in Eugene
By Shawn Turner, Alpine Pump Inc.
When it comes to well water systems, proper sizing and system design make all the difference. The image above shows a recent installation in Eugene where we upgraded the property with dual ProMax pressure tanks to improve performance, increase water storage capacity, and extend the life of the well pump.
For larger homes, properties with higher water demand, or systems experiencing excessive pump cycling, adding a second pressure tank can be a smart and cost-effective solution.
Why Install Two Pressure Tanks?
A single pressure tank works well for many homes, but in higher-demand situations, it may struggle to keep up. This can lead to:
- Frequent pump cycling
- Pressure fluctuations
- Increased wear on the pump motor
- Reduced system lifespan
By installing two tanks connected to the same supply manifold, we effectively increase the system’s drawdown capacity. That means more stored pressurized water is available before the pump needs to turn on again.
The result is smoother performance and fewer pump starts per day.
Benefits of a Dual Tank Setup
1. Reduced Pump Cycling
The primary advantage of a dual tank system is significantly fewer start/stop cycles. Since pump motors experience the most wear during startup, reducing cycling can dramatically extend pump life.
2. Increased Water Reserve
With two tanks working together, the system stores more usable water between pump cycles. This is especially helpful during peak usage times—such as mornings or when irrigation systems are running.
3. More Stable Pressure
Larger drawdown capacity means more consistent pressure across fixtures, even when multiple taps or appliances are in use.
4. System Redundancy and Balance
Properly balanced tanks share the workload evenly, maintaining uniform pressure distribution and improving overall reliability.
Installation Details
In this Eugene project, we configured both ProMax tanks on a shared plumbing manifold. The layout was carefully designed to ensure:
- Balanced water distribution between tanks
- Proper pre-charge settings matched to the pressure switch
- Accessible shut-off valves for future servicing
- Secure plumbing connections to minimize vibration and stress
Each tank was pressurized to the correct air charge before startup, ensuring optimal drawdown performance.
When Should You Consider Adding a Second Tank?
You may benefit from a dual tank installation if:
- Your pump cycles frequently
- You’ve added bathrooms or irrigation systems
- Your home has high simultaneous water demand
- Your existing tank is undersized
- You want to extend the life of your well pump
In many cases, adding a second tank is more economical than upgrading to a larger single tank—and it offers flexible placement options.
Built for Long-Term Reliability
At Alpine Pump Inc., we don’t just replace equipment—we evaluate the entire system to ensure it’s properly sized and configured for long-term performance. A well-balanced pressure system protects your pump, improves comfort inside the home, and reduces unexpected repair costs.
This dual pressure tank installation in Eugene is a great example of how thoughtful system design can make a major difference in reliability and efficiency.
If your well system is struggling to keep up with demand, it may be time to consider a capacity upgrade.
Shawn Turner
Alpine Pump Inc.
