INMATES at Alhaurin de la Torre Prison have spent more than a week with just an hour of water per day, UNION Acaip reports.
The union complains of bad smells and dirty conditions which has caused problems amongst the 1,400 inmates, and reported the situation to the Work Inspection department.
The water restrictions were first blamed on excessive use, but it was later said it was due to a pump breaking down.
At one point, the inmates were reportedly collecting rain water in buckets to use it to flush the toilets.
Acaip complains that they did not have enough water the wash the cells and communal areas, nor were they given drinking water.
Union UGT reports that a group of prisoners staged a protest and refused to go back to their cells until the problem had been fixed.
The prison director, Angel Herbella, explained that a pump to extract water from a well had broken down and the new one was due to be working by this week.
He also said the prisoners had been given two bottles of mineral water each to drink every day.
By Jennifer Leighfield