Pool manager Warren Webber said the lifeguards were being trained to the "highest standards".
Councillor Ray Stevens was disappointed the public hadn't been informed of the closure.
"I think it's ignorance," he said. "They have people coming from all over town for their cheap swim. If they aren't going to bother telling them that's really disappointing."
He said people chose the Wanganui East Pools over the Splash Centre when going for a cheaper option, but driving across town to get there only to find the pools closed was wasting fuel. "What's the cost of taking out an ad?" he asked.
"People are going to be inconvenienced. Things happen, just tell people and they don't mind. Don't piss them off by not telling them."
A post on the Wanganui Aquatic Centre's Facebook page is notifying people of the closure.