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The best thing to unclog a septic tank is a mechanical auger, especially if the clog is far down the line or particularly dense. You can also clear a clog in a septic line with a wooden pole or steel rod. Be sure to follow safety precautions when working in a septic tank, including wearing heavy-duty work gloves, goggles, and a gas mask.

Modern septic tanks have two lids: one that covers the inlet where wastewater flows into the tank and one that covers the outlet where the treated water flows out to the drain field. However, older septic tanks installed before 1975 may have only one lid. Because septic tanks last 20 to 40 years, if yours only has one lid, it may be time for a replacement.

It only takes a few days for a septic tank to fill with water after a pro has pumped it. This is completely normal, and the water is a vital part of your septic system’s wastewater treatment process. The water that fills your tank days after pumping is not the same as the tank being filled with waste. You shouldn’t have to pump your septic system more than once every three to five years unless you have a tank that’s too small for your home’s water output or there’s a problem with your leach field. 

It depends on several factors, such as the equipment used and the company. However, it takes about 20 to 30 minutes to pump an average-size septic tank of 1,000 gallons. A larger tank that is over 1,500 gallons can take up to an hour to pump as long as there are no complications.