Residents in Upper Northwest looking to beat the heat last week with a swim at the neighborhood Upshur pool were disappointed: A sign at the gate announced that the facility was closed, the second public swimming pool in Northwest in a month to be shut down for repairs.

The outdoor pool, at Upshur Street and Arkansas Avenue NW, has been closed indefinitely to repair the water filter system and the platform surface around the pool.

"The deck had some safety concerns and we were having a major problem with the filter," explained recreation department spokeswoman Marilyn Crawford. "We don't want our citizens going into water that is dirty."

Three of the District's 45 public swimming pools have been closed since May: the Capitol East Natatorium on Capitol Hill, the city's most popular indoor pool; the Marie Reed Indoor Pool in Adams-Morgan, which was closed last month after a swimmer was cut on some underwater tile; and the Upshur pool.

Jerome Brown, assistant director of the Upshur Recreation Center, said the pool closing there was sure to be a disappointment for area residents "because it's a community pool and the community really looks forward to it every year."

The pool usually draws about 125 swimmers on weekdays and 200 on weekends in the summer.

Diane Simpkins, an Advisory Neighborhood Commission member, said, "The swimming pool is very important and in reality, some people will be upset and some people won't give a damn."

Crawford said residents will have to find other public pools to use until the Reed and Upshur pools reopen. She said she did not know when repairs to the Upshur pool would be completed.