http://www.homebuildingandrepairs.com... Click on this link for more helpful information about plumbing, new home construction and building repairs. Here's another video that will blow your mind, when you find out how much volume of water can flow through different sized plumbing pipes. The examples in the video will include different sized pipes, along with the area of those pipes and flow rates. It really is amazing to think about how much water can come out of some of these larger pipes.