SEWAGE DEPARTMENT TRAINING PROGRAM
How to Repair an Elevated Sandmound
Next, a plan must be made on how the problem may be resolved.
Common Causes of Elevated Sandmound Clogging and Potential Solutions
Soil migration from top cover Install a geo-textile soil barrier Excessive fines in aggregate
Install clean aggregate Replace with leaching chambers or other aggregate substitute
Sludge escaping septic tank Increase pumping frequency Replace defective baffles
Replace defective gas deflector
Add an effluent filter
Seal any areas where groundwater may be entering the tank
Cease using tank additives
Add additional tanks
Reduce water consumption
Spread out water usage
Replace septic tank with aerobic tank
Grease escaping septic tank Increase pumping frequency Replace defective baffles
Seal any areas where groundwater may be entering the tank
Cease using tank additives
Add a pretreatment tank
Reduce water consumption
Spread out water usage
Excessive Bio-mat Cease using chemical additives Add additional treatment tanks
Replace septic tank with aerobic tank
Loosen soil upslope, down slope, and on top of mound to allow for a better exchange of gasses