<human>: What is the best way to get a septic tank to stop smelling?
<bot>: The best way to get a septic tank to stop smelling is to regularly clean it. This can be done by emptying the tank and cleaning it out with a mixture of water and chlorine bleach or vinegar, as well as using a deodorizer. Additionally, you may want to consider adding an oxygenating agent such as hydrogen peroxide to help break down any odors that are lingering in the tank.