How to handle sudden drop in sewer line
I want to build a bathroom in my garage on top of the cement slab. I can elevate the toilet so no problem there. However, where the sewer line exits the garage, I have only a one foot space in a planter area to get under a walkway. This means a sudden drop of 5 inches in a one foot space. Would two 90 degree bends be better than two 45's to make that 5 inch drop? I am thinking that, this would be the best way to keep the water from washing away from the solid waste.