The Instituto Costarricense de Acueductos y Alcantarillados says it will be turning off the water again today for some 43,000 persons in Escazú and points west.
The water company blamed the Compañía Nacional de Fuerza y Luz for cutting power used to run pumps.
The same area was hit with an outage last week when the state water company said it had to do maintenance.
The outage area will include San Rafael de Escazú, Santa Ana including Pozos, Piedades, Brasil and Ciudad Colón in Mora.
The outage will begin at 9 a.m. and the water will be back flowing at 5 p.m., said the company.