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The importance of keeping a free flowing and efficient septic is a necessary aspect of good housekeeping.

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The septic system plays one of the most important roles in a household; it gets rid of the wastes from the toilet, laundry and wash areas.

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There are a few different components that make up the septic system: the tank, the leach field, the pipes, and the distribution box.

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Knowing how to size a septic tank or how to compute the needed size is necessary in building the proper system for a home.

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What is a Trench Leach Field Septic System?
Septic leach trenches for disposal of septic tank effluent are one to three feet wide trenches that have up to four feet of aggregate rock with a perforated pipe installed down the middle of the trench on the top of the rock. The pipe is connected to the distribution box and the septic tank outlet pipe. Typically the aggregate rock filling the trench has a diameter of ¾ to 2-inches and has been washed to remove fines. The water leaving the septic tank drains to the perforated pipe in the trench where it leaks out the holes. It then is absorbed in the soil at the bottom and on the sides of the leach trench. Treatment of the septic tank effluent water also occurs in the soil as microbes grow and use the organics and nutrients. Physical filtering of the water also occurs in the soil.

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It should be noted that while this information is written in regards to Pigeon Lake, Alberta, it may also have some valid points for dying lakes elsewhere.