I appreciate you including the information on contacting the Health Dept. That's a great example of communicating with the inspector to do the best job the right way. Thanks!
Hey thanks for the question! This is a gravity system, but it uses hillside boxes or sequential distribution, so the lines do not need to be the same length. Basically there is a hillside drop box at the start of each line and once that line fills up the box fills up and then goes down to the next line and so on. If we use an equal flow distribution system with one central D-box piped to all the laterals, then yes the lines need to be within 10% length of eachother.
I appreciate you including the information on contacting the Health Dept. That's a great example of communicating with the inspector to do the best job the right way. Thanks!
Hey thanks for the comment! Yes, I believe the better you work with them, the better they work with you.
Question. In your area the drain field lines don’t have to be equal on a gravity system? Or is this a pressure manifold system?
Hey thanks for the question! This is a gravity system, but it uses hillside boxes or sequential distribution, so the lines do not need to be the same length. Basically there is a hillside drop box at the start of each line and once that line fills up the box fills up and then goes down to the next line and so on. If we use an equal flow distribution system with one central D-box piped to all the laterals, then yes the lines need to be within 10% length of eachother.
What road this on?