A brown, frothy liquid poured from the taps of the Haines Borough’s water customers last weekend, following a drop in pressure at the borough’s water treatment plant.

The plant had been experiencing low pressure for about 10 days when pressure dropped to about 35 pounds at 11 p.m. Saturday night, ending water processing and causing the borough to pump water that had accumulated at the bottom of its FAA Road storage tank, said public facilities…