My friend have a lot in Tijuana, Mexico. We need to build a cesspool that will service about 5 adults at some point. We have a long and narrow lot with plenty of vacant land behind the lot. We have already begun trenching(by hand) and have laid ABS line to a pit at the rear of the property, the pit is about 7 feet wide and about 3 feet deep and 8 feet long, I dont think this will be nearly large enough and we dont have any leach lines either. So I need some Help with plans and advice. Also the soil is adobe, HELP!