To break down fat in a septic tank, you will need to hire a professional septic tank cleaner near you to either pump the septic tank or use a shock treatment to clear the clog. It’s important to not pour fat, oil, or grease (memorable with the helpful acronym FOG) down your drains because they can clog the septic system. Instead, you can dispose of them with regular trash, or if your household produces a lot of FOG waste, you may want to install a grease trap for your plumbing.

When septic systems begin to fail, your waste will start to seep into the groundwater. You may notice a foul odor (it’ll smell like sewage) or a squishy, moist lawn. The grass right over your tank or drain field might grow super lush and green because your waste actually fertilizes it. Other signs include standing water in your drain field, slow-draining sinks and tubs, and gurgling noises in the plumbing.

A leach field can take several days or weeks to dry out, even with help from additives designed to improve bacterial activity and promote draining. Because of the risks to health and the potential for wastewater to run off into drinking water sources, it’s better to hire a pro to fix a saturated drain field than try to wait for it to dry out.

Common problems include clogs, leaks, and drain field failures. Regular maintenance helps prevent major issues.