How to Install a Septic Drain Field for Your House?
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Installing a septic drain field means you have to follow specific rules and regulations, and blockages should not occur with the proper installation. Then, as a homeowner, how to install a septic drain field? More importantly, can a homeowner install a septic system? Yes, you can install it as a homeowner.
However, again, there are rules and regulations regarding this matter. This article will tackle the steps of how you could install a septic drain field.
1. Do Your Research
This is probably the most crucial part of your installation process. You need to check with your local county office and health department whether you need to have a permit or you can go ahead to install it. There is a possibility that your health department will need to inspect your drain field while it is being built or after it is built.
If you do need a permit to install a septic drain field, make sure to wait for approval before digging your ground. After you have the permission, make sure you are abiding by any laws regarding plumbing and building.
- Soil Drainage/Absorption
Your health department usually will inspect with this natter. However, you should know that a drain field should not be placed in a poorly drain capability. Building it, you have to make sure it is 10 feet away from home, any body of water, garden, or any edible plants since it can be harmful.
- Underground Utilities
There are probably utility lines under your ground. If you think this is in your soil, you should call the utility companies. You do not want to sever any lines or cables while you are digging. Doing this might end up with your having to pay for the cost of repairing the parts that you damaged unintentionally.
2. Septic Tank Drain Field Layout
After researching the rules, soil condition, and permit, you can now concern yourself with actually building your septic drain field. First thing first, make the layout. This will help you a lot in making the septic drain field construction.
In making the drain field design, you should ensure there is contact between the liquid effluents with the subsoil. Construction should use perforated pipe, laid in trenches no steeper than 1:1200. The pipes of your drain field should be laid on a layer of gravel.
Trenches should be filled 50mm above the pipe and covered with non-woven geotextile. This is done to prevent the entry of silt.
4. Gravel and Perforated Pipe
Gravel should be placed one foot deep on the entire length of the trenches you are putting. Perforated pipes can be placed on top of the gravel. After putting perforated pipes, put even more gravel on top of it. Septic fabric is needed to be put at this stage to prevent dirt from getting into the gravel.
After that, put back the soil you have dug to make room for your septic tank. When the dirt has settled down, put some more soil to make your septic drain field area level with the rest of the soil.
Now you know how to install a septic drain field and ready to build one of your own!