how deep can a septic drain field be
A septic drain field should be 10 feet from the home or any body of water, and 10 feet from gardens and edible plants. Dig the trenches. Each drain-field trench should be at least 3 to 4 feet wide and 3 to 4 feet deep.There should be at least 100 feet of drain field for a 1,000-gallon septic tank. This can be accomplished by making four trenches 25 feet long or two trenches 50 feet long.ach drain-field trench should be at least 3 to 4 feet wide and 3 to 4 feet deep. There should be at least 100 feet of drain field for a 1,000-gallon septic tank.