minimum of 10 feet
In most areas it is 100 feet.
They are replaced. The old lateral field is taken out, new lines and gravel is are put down and covered.
Yes, be sure to know local codes as for proper repair and inspection of lines to be fixed.
Yes, pear tree roots can potentially reach a septic system if the tree is planted nearby. Tree roots naturally seek out water and nutrients, which can lead them to invade septic lines or the drain field. This can cause blockages or damage to the system, so it's advisable to plant trees at a safe distance from septic systems. Generally, a distance of at least 10-15 feet is recommended to minimize the risk of root intrusion.
You don't, you replace it. Dig up the old, lay new pipe and gravel and cover. You can also try the natural bacterial cleaners, such as the all-natural advanced formula Septic-Helper 2000. Some treatments have the natural bacteria that work outside of your septic system and in your drain lines and drain field.
Can be as little as you like.
They have a septic tank. It is a tank underground, roughly 4x6x6 feet and a lateral field which is a series of perforated pipes that let the water seep into the ground.
The minimum resolvable line separation between adjacent lines is the smallest distance at which two lines can be distinguished from each other.
Yes, I have done it a few times. ( of course, in many areas new regulations forbid this now)
Yes, that is Rule 1.04(a) which reads: "Any Playing Field constructed by a professional club after June 1, 1958, shall provide a minimum distance of 325 feet from home base to the nearest fence, stand or other obstruction on the right and left field foul lines, and a minimum distance of 400 feet to the center field fence."
Power lines and electronic equipment: 150m
Keep all conductive objects a sufficient distance from the line. Minimum distance depends on the voltage on the line.