Leak test with soapy water

The soapy-water leak test

When: before each use (the manuals; Essentials Guide), and always after a cylinder change, after storage and after changing any gas part. Never look for a leak with a flame, and do not smoke.

1. Work outdoors with no flames nearby, and turn the knob off.
2. Mix 1 part liquid detergent to 1 part water, in a spray bottle or on a brush or rag (the manual), or use a leak-detector spray.
3. Open the cylinder valve slowly (UK: lift the regulator's switch). Do not light the oven. Opening a US tank fast can trip the regulator's safety cut-off (Essentials Guide).
4. Wet every joint: cylinder to regulator, regulator to hose, hose to barb, barb to terminal (UK), or the hose nut (US), and along the hose.
5. Watch for growing bubbles. If you see any, turn the gas off, tighten the joint and test again.
6. Still bubbling: turn the gas off and do not use the oven. Contact Ooni (the manual): "Never cook with a product that has failed a leak test" (Essentials Guide).