Great App
Can be used local on device. Has amazing tools for fuel work.
Free
In-App Purchases
About
This tool simplifies fuel system measurements for technicians. It offers accurate drop tube calculations, supports precise fill levels, and provides a reference for dispenser error codes. Streamline your work and ensure regulatory compliance in the field.
✓Accurate drop tube length calculations
✓95% fill level support
✓Tank volume chart builder
✓Dispenser error code reference
✓User-friendly field interface
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What's New in DropTubeBuilder
1.2.0
July 5, 2026
The biggest update yet, built from real field work. • EPD 3 Year Inspection: run the Georgia EPD flapper and valve inspection in the app. Enter the form measurements, get an instant PASS or FAIL, and export a signature ready PDF report. • Pump Controllers: fault codes, DIP switch settings, and calibration steps for the FE Petro MagVFC and the new Guardian single phase controller, all searchable. • Franklin EVO 550 and 5000 tank gauge alarms: 97 alarms with causes and recommended actions. • Expanded Gilbarco Encore 500 error codes. • Tank Chart Builder now shows the 95% and 90% overfill levels and exports a printable PDF chart. • Drop tube math verified against the official OPW, Franklin, and EMCO worksheets, with Franklin cut lengths corrected to match their calculator. • Every PDF export now shares as a properly named file for email, text, or Files. • Improved iPad layouts throughout.
MoreSubscription plans
DropTubeBuilder Pro monthly
Unlock Pro Tools for Fuel Technicians!
$4.991 Month
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FAQ
What is DropTubeBuilder used for?
DropTubeBuilder is a utility app designed for fuel system technicians. It helps with accurate measurements for overfill drop tubes and provides quick diagnostics for dispenser errors, ensuring compliance and efficiency.
Does DropTubeBuilder have ads?
No, DropTubeBuilder does not contain advertisements. The app is free to download and use, with optional in-app purchases for advanced features.
What are the subscription options for DropTubeBuilder Pro?
DropTubeBuilder Pro offers a monthly subscription for $4.99/P1M and an annual subscription for $24.99/P1Y. The annual plan includes a 3-day free trial.
How accurate are the drop tube calculations in DropTubeBuilder?
The app provides precise drop tube length calculations based on simple input measurements, ensuring overfill valves sit exactly at the regulatory 95% fill level.
What dispenser brands does DropTubeBuilder support for error codes?
DropTubeBuilder includes a reference for dispenser error codes for both Gilbarco and Wayne dispensers, offering possible causes and troubleshooting steps.
On what devices can I use DropTubeBuilder?
DropTubeBuilder is available for use on iPhones and iPads, making it a versatile tool for technicians in the field.
How often is DropTubeBuilder updated?
The latest version, 1.1.7, was released on January 26, 2026. Updates are provided to ensure the app remains reliable and current with industry needs.
What is the age rating for DropTubeBuilder?
DropTubeBuilder has an age rating of 4+, making it suitable for a wide range of users. This indicates it contains no mature content.
