This type of drainfield is commonly used in clay or heavy soils, the wastewater is pumped up through pressure lines and is let out to evaporate in the sand that is brought in.
The first step to installing a drainfield is to get a septic permit. You can acquire a permit by contacting your local county health department, they will then send a health sanitarian out to your location and take some soil samples then determine what type of drainfield you need based on the size of the home and what kind of soils where found.
After the permit has been approved you can start to install your new septic system based on what the permit requirements are for that specific drainfield. Here at All Things Septic we are willing and able to take care of the permit process if the customer would like as well as meet the health sanitarian on the location of the new drain field to better understand what is best for your new septic system.