City of Plymouth issued the following announcement on Oct 26.
Department of Municipal Services crews will be performing their annual, routine hydrant flushing and testing beginning today and lasting for approximately one month.
During that time, you may experience lower than normal water pressure and/or discolored water for a brief time. If you experience either of these conditions, run your cold water for several minutes to flush out your plumbing. Discoloration that may occur is due to natural minerals in the water being stirred up in the hydrant flushing process. The water will remain safe to drink at all times throughout this process.
Any questions can be directed to the Municipal Services Department at dms@plymouthmi.gov or 734-453-7737.
Original source can be found here.