What’s wrong with this picture? To the untrained eye it looks like clean drain lines from a kitchen sink connected to a garbage disposal and the absence of obvious leaks. Hmm…not so fast! We see unacceptable plumbing design in homes from Seattle to Wenatchee. Evaluating the proper function and flow of a plumbing system is the key to pinpointing areas of concern. Improper drainage material is just one thing wrong in this photo. The flexible waste line material used to connect the garbage disposal and P-trap to the waste line is not approved by the Unified Plumbing Code (UPC). In addition, the flexible waste line creates an uneven surface for the water flow and eventually promotes clogging. Thinking like water, can you find other problems with this photo? Email us at firstname.lastname@example.org and we will be happy to answer your questions and comments. At AMS Inspection Services we provide our clients with an inspection report documenting the maintenance and operation of your home. Our detailed home inspection reports are the most valuable tool for a new home owner.