Willits residents may see a drop in water pressure and water discoloration for a short time both today, Thursday and Friday as the Willits Water Department flushes water mains at the base of Pine Mountain to clear sediment from the water system. Letting the water run for a minute in the case of discolored water should solve the problem. Drivers in the area of Pine Mountain are cautioned that crews will be working and roads may be wet and slippery.