The point of a plumbing riser diagram is to separate out plumbing systems for potable water, waste water, storm water, sewage, and so on to be able to identify exactly where the different piping is located and what it is attached to in terms of appliances, drains, other building systems,...
EdrawMax comes with thousands of free templates. You can easily find the diagram template in the template community that you are looking to customize; EdrawMax comes with over 50,000 vector-enabled symbols, which are fully resizable, recolorable, and reshapable; ...