snottyvar
New Member
Hi again. I think I have learned. Please take a quick look at the drawing. I have decided to use and air admitance valve on my kitchen island as it is right there under the sink and easy to replace when the time comes. Also assume slopes of 1/4 inch per foot. I did my best drawing but it was hard to reflect the slope. San Tees will be uses on all trap arms. All pipes are 3 inch down to 2 inch for vents and the kitchen, tub and shower drains. The basins will be 1 1/2 inch. Thanks again