Ponds Forge leisure pools were drained on October 4 due to leaky pipes.
Now, Everyone Active, which took over managing the centre in January, says investigations have been successful and they are planning repairs.
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No date for reopening of the paddling pool, Lazy River and Surf City pool and wave machine were given.
Phil Bowers, contract manager, said: "Following successful investigatory maintenance works, we are working closely with experts to plan the pipework repairs.
"We sincerely apologise for any inconvenience caused and thank our customers for their ongoing patience. We will provide an update as soon as we can."