What Is A Leach Field For A Septic Tank?

June 24, 2022 Published by Leave your thoughts

A septic tank is a concrete, fiberglass, or plastic chamber that receives sewage from household drains. The solid matter in the sewage settles at the bottom of the tank while the effluent (liquid waste) flows out to a leach field for further treatment. As a vital drain system, it’s essential to understand some of the crucial components and their roles. But first, learning more about the leach field and the necessary maintenance concepts is critical.

What Is a Leach Field for a Septic Tank?

A leach field, also known as a leach drain or leaching field, is an area designed to filter effluent from a septic tank. The soil and vegetation in the leach field remove contaminants and water from the effluent before it seeps back into the groundwater. Therefore, leach fields must be designed and installed correctly to protect groundwater quality. 

Leach fields are often located in the front or back yard of a home, and they can be either covered or uncovered. The size of the leach field depends on the number of bedrooms in the house and the soil type and percolation rate. Leach fields must be properly maintained to function correctly.

Leach Field Maintenance Strategies

The maintenance of leach fields is essential to protect groundwater quality and prevent pollution. Homeowners should follow these strategies:

  • Pump septic tank regularly

In septic tank maintenance, you must ensure that the solid matter does not accumulate in the tank. If it does, it will flow into the leach field and clog the soil pores, preventing effluent from draining. As a result, you must pump the septic tank every three to five years to remove the accumulated sludge.

  • Avoid waterlogging

Waterlogging is a common problem in leach fields because the effluent contains water. Homeowners can avoid this problem by ensuring that the leach field is not overwatered. They should also direct downspouts away from the leach field, and they should not plant trees or shrubs near the leach field.

  • Avoid chemicals

Household chemicals, such as cleaners, disinfectants, and detergents, can damage the leach field. Homeowners should use environmentally friendly products and not dispose of chemicals in the leach field. Most of the chemicals used in the house can be disposed of at a local hazardous waste facility.

  • Use environmentally friendly cleaners

The use of environmentally friendly cleaners is essential for the maintenance of leach fields. Homeowners should use non-toxic and biodegradable cleaners to avoid damaging the leach field. Such cleaners are critical because they break down quickly and do not pollute the environment.

  • Do not drive or park on the leach field

The weight of vehicles can compact the soil in the leach field and damage the system. Homeowners should not drive or park on the leach field. They should use a lightweight vehicle if it is necessary to go on the leach field. Physical damage to the leach field can be repaired, but it is expensive.


Leach fields are essential for the treatment of effluent from septic tanks. The leach field removes contaminants and water from the effluent before returning it to groundwater. Homeowners should follow these strategies to maintain their leach fields: pump septic tanks regularly, avoid waterlogging, use environmentally friendly cleaners, and do not drive or park on the leach field. Contact All Pro Septic in Cleveland, Texas, for any questions or septic tank maintenance needs you may have.

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