Tip: For laydown tanks, set Full Inches to the usable stick at “full” (≈ diameter in inches). Use the timer + flow if you want to estimate diameter from a timed fill.
Timer (optional)
Elapsed: 00:00:00
When “Use timer as primary” is on, total moved = elapsed × Flow (auto-converted) → SCF by gas. Inches show as a cross-check.
Enter values and tap Calculate.
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