LLAA's April 2016 Email from Arthur Howe
Septic systems can be degraded over time by sludge build up, for example, by the use of a garbage disposal unit. Sludge carryover can ruin the effectiveness of the drainfield. The tank should be pumped out when the sludge becomes deep. Also, excessive water usage can reduce the effectiveness of the drainfield. For a full account of how to maintain an effective septic system please go to this link, from the University of Minnesota:
Let's be vigilant in maintaining our septic systems so that they don't contaminate surrounding areas.