He also said there will be a limited number of umbrellas, and they'll look into adding more. Nice!
Link clarified the hours too:
The pool will be opening on May 29, 2010 for weekend operation only (12pm – 6pm, Sat & Sun). It will switch to a daily schedule on June 21, 2010 (Mon, Tue, Wed, Fri, 1pm -8pm; Sat & Sun, 12pm – 6pm; Closed on Thursday).The pool is located at the corner of Georgia and Euclid. It's free to city residents.
David Hockney painting not of the Banneker pool