On-site systems include drain fields, which require significant area of land.

It consists of the tank and a septic drain field.

In either event, the drained field will be ineffective against our shields."

The weeping tile spreads the liquid throughout the drain field.

Meanwhile its port became more active, while the cultivation of the drained fields started.

Beyond the drained fields were carefully preserved and fenced areas of swamp.

"The drain field rests on a bed of gravel, usually covered by soil and vegetation.

This is why the drain field usually boasts the healthiest segment of the yard above it.

It has a government approved sanitation system that includes septic tanks and a drain field.

The water released by the system is normally absorbed by the drain field without needing any further treatment.

A mound system is an alternative to the traditional rural septic system drain field.

A percolation test is required to establish the porosity of the local soil conditions for the drain field design.

With adequate routine maintenance it may reduce the chances of the drain field plugging up.

To save water and increase yields, Chinese farmers have switched to draining fields several times a year instead of keeping them flooded.

A drain field may be designed to offer several separate disposal areas for effluent from a single septic tank.

After the Lammeters leave, Godfrey goes to look at the draining fields.

Groundwater flow is laminar in the aquifer soils surrounding the drain field.

Farmers, for their part, worry that a spring rise could cause flooding or make it impossible to drain fields in time for planting.

Cleaning formulations may reduce drain field efficiency.

Water moves in a drained field under the influence of pressure where the soil is locally saturated and of capillarity pull.

While some aerobic breakdown occurs there, the drain field primarly functions as a biological filter."

Coarse soils - sand and gravel - can transmit wastewater away from the drain field before pathogens are destroyed.

When a septic tank is used in combination with a biofilter, the height and catabolic area of the drain field may be reduced.

The septic drain field is effective for disposal of organic materials readily catabolized by a microbial ecosystem.

Septic systems are designed so that only the effluent is discharged from the tank into the drain field (also called the leach field).