Anglian Water say they're really sorry and are trying to fix the problem.
There's anger in the Lincolnshire Wolds as some homes have have now been without water for 24 hours.
It's because of a burst main under the River Bain - because of it's position it's very difficult to fix and engineers say they don't think supplies will fully return until tomorrow.
Bottled water has been hand delivered to vulnerable people by Anglian water.
Water bottle collection points have been set up in Hagworthingham, Belchford, West Ashby, Fulletby and Tetford.
Anglian water say they're genuinely sorry and have drafted in more teams to help fix the problem.