What Do I Do If My Tank Won't Accept Propane?Updated 2 days ago
What Do I Do If My Tank Won't Accept Propane?
If a propane refill station says your Gas Growler won't take propane, fills very slowly, or stops right away, it's usually not a defect. Smaller tanks can be more sensitive during filling. The tank's internal safety mechanism can also "lock" for a moment if it's handled roughly or filled too fast.
The good news: this is often resolved in a couple of minutes.
Why this happens
Inside the valve is a small safety float (sometimes called "OPD") that helps prevent overfilling. On smaller tanks, it can get stuck if:
- It was on its side during transit or storage
- It was dropped or bumped
- The refill tech opened the valves too fast or in the wrong order
When this happens, the tank may seem "blocked," and propane won't flow in like normal.
Step 1: Ask for the Correct Fill Order
Connect the fill connector to the tank
Turn the pump/dispenser on with the tank valve still CLOSED
Slowly open the tank valve (slow is critical)
Open the bleeder screw
Most “won’t fill” problems happen when the tank valve is opened too quickly.
Step 2: If the valve seems “stuck,” try a gentle float reset
If the cylinder is empty (or nearly empty) and the tank valve is fully CLOSED, you can try one of these simple, non-invasive steps before attempting another fill:
- Option 1: Take the tank to a professional and have them purge it. This resets the valve.
- Option 2: Connect the tank to a camp stove, grill, or similar device. Slowly open the main valve to release extra pressure, then close the valve and disconnect. This should free up the stuck valve.
- Option 3: Set the tank on its side on a soft surface (grass, carpet, a towel) and gently roll/rotate it for 1–2 minutes. Stand it upright and gently tip/rock it a few times (upright → slight tip → upright). This can help the internal float/mechanism settle back into position, especially if it got bumped during travel.
Do not do anything forceful or aggressive. No slamming, shaking hard, or dropping.
After resetting the valve, you should be able to take the tank back to your local filler. When doing so, please let them know to fill the tank as slowly as possible; this makes a big difference in ensuring a successful fill.