If your sewer lateral blockage occurs after receiving a pink warning tag from M.U.D. but before one of our contractors performs a sewer lateral inspection, immediately call M.U.D.’s 24-hour emergency number at 402.554.7777 and our dispatchers will send one of our contractors to perform an inspection. If you have a sewer lateral blockage but did not receive a pink warning tag from M.U.D. or if your blockage occurs after an M.U.D. contractor has inspected your sewer lateral, we recommend you call a reputable contractor or plumber to safely clean your sewer lateral.