Septic drain fields do not last forever and may have an average useful life of approximately 20 years or so. As with just about anything else, it will need to be replaced from time to time.
The drain field is the method for moving household waste from the septic tank to ground past the tank. It consists of a series of pipes buried in the ground and perforated so the waste will leech out over an area of several hundred square feet. The pipe is normally encased in crushed stone for proper drainage. This method prevents waste from collecting in one small area.
Local building codes usually have requirements regarding how long the lateral drains must be, the pitch of the lateral pipes, the depths they must be laid and the material used to encase the drain field. Failing to follow codes may require the owner to do the job … Read More