Middlebury residents are being ordered to boil their water before using it after a loss of pressure in the city's water system. Town Manager, Lowell Miller tells WSBT the boil order will be in effect until Friday. He says the system lost pressure on a line near Main and Spring Streets. Miller says when the water system lost pressure, contaminants may have syphoned back into the system. Testing will take 3 days to make sure water is safe to drink. Miller recomends you vigorously boil water for five minutes before drinking it or cooking it.