Installing a septic system requires putting in a septic drain field. A drain field is the part of a septic system where the wastewater is dispersed into the soil for absorption and filtration. Installing a drain field may seem difficult for the novice; however, when you have the knowledge and tools to do the job correctly, it is actually a fairly easy task.
The following is a general guide on how to install a drain field:
1. The process for installing a drain field will vary from region to region, so the first thing you need to do is learn about the applicable building codes and obtain a permit. As well, you will also have to learn about the necessary inspections. You should also talk to the zoning department in your area. You will have to present your plans to the proper local government department to get your permit.
2. The location you choose to install the drain field will require a percolation test. A percolation test measures the ability of water to soak into the ground. This test will tell you how porous the soil is and the length of the field lines that will need to be installed. The size of the tank you acquire will depend on the number of bedrooms in the home. The results of the percolation test will allow the inspector to determine the type of materials you need for the drain field such as sand, gravel, fill dirt, and topsoil.
3. You will have to measure for the installation of the drain field lines. Some people will use a surveyor to measure and record the dimensions.
4. Once you have the correct measurements, dig the trenches for the field lines. The depth of the field lines will be determined by the depth of the outlets from the septic tank. When digging field lines, make sure there is a slight slope so that there will be proper drainage.
5. Lay the drain pipes in the field line trenches and attach them to the outlets from the septic tank. Once this is done, fill the septic tank with water.
6. Fill in the field lines with the percolation test determined materials such as gravel, sand, dirt…etc. Once you have it filled in properly, you will likely have to get another final inspection. After you pass the inspection, you can lay sod or plant grass. Remember, when you are covering the drain fields, there should be a slight mound to prevent water from draining on the property.
For every home that is built, a septic system is mandatory in order to have running water. The septic system includes installing a drain field. It is not that difficult to install a drain field. It is just a matter of having a plan and understanding what inspections and permits are required. If you are not comfortable with installing the drain field yourself, there are professionals with the knowledge and experience who can do the job properly and meet all of the local government codes.