Trench soil absorption system. Wastewater Distribution In Ohio, the soil absorption system is divided into two equal sections. A diversion device is used to alternate the flow of wastewater from one side of the system to the other. The diversion device should be easily accessible for annual switching. Things to Watch Out For Keep heavy equipment off the soil absorption system area both before and after construction.
Soil compaction can result in premature failure of the system.
Divert rainwater from building roofs and paved areas away from the soil absorption system. This surface water can increase the amount of water the soil has to absorb and cause premature failure. Make sure the alternating device and the trench bottoms are level to provide even distribution of the septic tank effluent. If settling and frost action cause shifting, part of the soil absorption system may be overloaded. Avoid installing the septic tank and soil absorption system when the soil is wet.