Drawdown Calculator
Use our Drawdown calculator to accurately size tanks, prevent pump issues, compare performance, and confidently recommend the right Flexcon tank for any system.
Draw Down Results
| Drawdown (GAL) 1 | {{ drawdown }} | |
| Volume at Cut In (GAL) | {{ volumeAtCutIn }} | |
| Volume at Cut Out (GAL) | {{ volumeAtCutOut }} | |
| Acceptance Factor (%) | {{ acceptanceFactor }}% | |
| Differential (PSI) | {{ differential }} |
1 Draw down is the volume of water moved into and out of the tank between cut in and out. This figure is used to properly size a tank to the pump flow.
Popular uses
Size the Correct Pressure Tank for a Customer
Drawdown determines how much water is available between pump cycles. An installer uses the calculator to:
- Match the tank size to the customer's flow requirements
- Ensure the pump isn't short-cycling
- Recommend upsizing or downsizing based on actual water usage
Provide Accurate Quotes and Recommendations
An installer can quickly calculate:
- How much usable water a tank model provides at the customer's pressure settings
- Determine the proper size tank for a system
- Which tank offers the best performance for their application
Validate System Design with Installers & Engineers
When working with contractors or specifying engineers, customers use the calculator to:
- Check compliance with pump manufacturer minimum cycle times
- Ensure tank sizing meets building code or system design guidelines
- Confirm performance for high-demand situations (irrigation, agriculture, light commercial)
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