What oil can be used to test for a breach allowing sewer gas into a building?

Peppermint oil is commonly used for testing breaches that may allow sewer gas to enter a building due to its strong and distinctive aroma. When applied in areas where there may be a potential gas leak, peppermint oil can be detected in the air, effectively indicating the presence of a breach. This method capitalizes on the noticeable scent of peppermint oil, which is significantly more pleasant and easily identifiable than the types of gases that may be leaking from the sewer system.

The other oils listed may not possess the same level of olfactory intensity or may not be recognized as effectively in such testing scenarios. Olive oil, for instance, is more commonly used in cooking and would not provide a strong enough scent to identify a breach. Coconut oil, while pleasant in aroma, lacks the distinctive scent needed for effective detection of sewer gas. Mineral oil, on the other hand, doesn’t have a robust smell that would aid in finding leaks and is typically used for lubrication and as a laxative, rather than for scent detection in plumbing situations.