There are a number of methods for sewer gas detection. The following are a few of the most common ones that you can try to detect and eliminate sewer smells.
1. Do a Physical Check
This may sound obvious, but it is often an overlooked step in detecting sewer problems of any sort, including sewer smells. Walk around the area where your septic tank is and check to ensure there is no leakage. Check toilets, sinks, and other plumbing fixtures for leaks as well. All of these things can be sources of sewer gas leakage.
2. Check Rooftop Vent Stacks with Peppermint
If you want to discover whether or not the vent stacks are the culprit for releasing sewer smells, run a peppermint test. Simply soak a bath towel with peppermint oil and carry it up to the roof with you. Then, stuff one of the vents (there are usually two) with the towel. Go into your house and sniff. Repeat this process for the second vent. If you smell peppermint, then your vents are part of your problem.
3. Inspect the Drains
Ensure all drains, including drains in the floor and drains used by washing machines, are flowing freely. A slow drain can cause septic odors to escape and permeate throughout your home.
Sewer gas detection is important as these gasses can pose several health threats. If you smell septic odors, you can rectify the problem quickly.