A couple times this week, we’ve heard from West Seattleites with discolored (“brown”) tap water. First Gatewood, today Arbor Heights (thanks for the report, and for the photo above). The potential causes are numerous; no water breaks in either case so far as we have heard, so we thought we would remind you of what to do if it happens to you – First thing, call Seattle Public Utilities at 206-386-1800. Usually it’ll turn out to be something simple like firefighters testing hydrants in your area. Here’s what you’ll usually be asked to do – but don’t wait to report it, even if you do suspect it’s something routine – SPU has told us over and over again that they want to know.