Do not put too much water into the septic system; typical water use is about 50 gallons per day for each person in the family.

Do not add materials (chemicals, sanitary napkins, applicators, and so on) other than domestic wastewater.

Restrict the use of your garbage disposal.

Do not pour grease or cooking oils down the sink drain.

Periodically have the solids pumped out of the septic tank.

Maintain adequate vegetative cover over the drainfield.

Keep surface waters away from the tank and drainfield.

Keep automobiles and heavy equipment off the system.

Do not plan any building additions, pools, driveways, or other construction work near the septic system or the repair area.

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Source: North Carolina Cooperative Extension Service