The answer to 'how to unclog septic tank' is to use a septic tank cleaning tool or hire a professional septic service. Septic tanks can become clogged over time due to the buildup of solids, which can lead to slow draining sinks, toilets, and other plumbing issues. To unclog a septic tank, you may need to use a septic tank cleaning tool, such as a septic tank auger or snake, to break up the clog and restore proper drainage. However, if the clog is severe or you're not comfortable working on the septic system, it's best to call a professional septic service to inspect and clean the tank.
Regular septic tank maintenance, such as pumping the tank every 3-5 years, can help prevent clogs and extend the life of the system. It's also important to avoid flushing non-biodegradable items down the drain, as these can contribute to clogs and other issues.