Customers are largely ignoring the water restrictions implemented in Montgomery and Prince George’s counties, according to the Washington Suburban Sanitary Commission

The agency wants to reduce water use by one-third, but officials it has dipped less than 10 percent since Thursday.

WSSC banned all outdoor water use through at least the weekend after a major water main failed in Potomac, and told customers to use water only when necessary.

The water agency serves roughly 1.8 million people in the Maryland suburbs.