Continue brushing or spraying the pipes with soapy water and watching for bubbles until you find the source of your leak. I go over why or why not you would use methods you may have heard of for testing joints for gas. How to conduct a leak check using the bubble test 1
Two new papers explore the complicated physics behind bubbles and foams
Turn the propane tank off
Turn the tank service valve hand wheel all the way to the right, so it is firmly in the off position.
Combine them in approximately the same ratio that a child would use to blow bubbles. A bubble test measures the gas bubbles that escape from a valve over 10 seconds Manufacturers have standards for allowable leakage, and a bubble test reveals if the leakage is within normal limits or excessive. Trades and homeowners alike can use a bubble soap leak detector to check piping systems for leaks.
If you smell gas, you most likely have a leak Brush liquid soap onto the area you suspect has a leak. In this hvac video, i show you (in live format) how to properly leak test gas line connections
