Do have your system inspected (every one to three years) and pump your tank (as necessary, generally every 18 – 36 months).
Do use water efficiently.
Don’t dispose of household hazardous wastes in sinks and toilets.
Do plant only grass over and near your septic system. Roots from nearby trees or shrubs might clog and damage the dispersal field.
Don’t drive or park vehicles on any part of your septic system. Doing so can compact the soil in your dispersal field or damage the pipes, tank, or other septic system components.