Two days after yet another cracked drain pipe leaked water in the Board of Equalization’s faulty tower, employees in the building learned this afternoon that it will take two weeks to repair all the damage.

The leak damaged ceilings, walls and floors and prompted the agency to close men’s restrooms on two floors. Crews will begin working after business hours Friday night and into Saturday morning, according to a memo from board Deputy Director Edna Murphy.

The Department of General Services, which acts as the 24-story tower’s landlord, figures the plumbing repairs will be finished by Monday, but “anticipates all remaining drywall repairs, such as finishing and painting, will be completed within two weeks,” according a memo Murphywrote. “We apologize for any inconvenience this may cause.”

The tax-collecting board’s headquarters in downtown has a long history of defects. Repairs have cost more than $60 million so far and more are needed, according to an assessment of the structure, including an extensive overhaul of its crumbling drainage system.