More than £227,000 is needed to complete ongoing works at the NSC.
Tynwald will be asked to approve the funds for the flumes at this month's sitting - taking place next week.
The Department of Education, Sport and Culture says the overspend is because of ongoing problems regarding the leisure pool and flumes.
The facility has been closed since August 2018.
Case for horse tram tracks 'under final review'
The business case for finishing the horse tram tracks is under final review, with the Department of Infrastructure hoping to submit it to Tynwald soon.
Council spends more than £1m on beads for cavities
Douglas Council's spent over 1.1 million pounds on insulation for social housing, according to a Freedom of Information request.
Police recruitment drop-in sessions tonight
The police will be holding two drop-in sessions this evening as part of their latest recruitment drive.
Ferry terminal and universal basic income on Keys agenda
The House of Keys sits later, to discuss topics including the Liverpool Ferry Terminal and universal basic income.
Key Ramsey roads to shut for over a week
A key route in Ramsey will be closed for over a week this month.
7 year old's selling animal figures for charity
An animal crazy seven year old is selling 3D printed figures to raise money for the ManxSCPA.
Bar George debts case heads to court
A court case involving a Douglas bar which shut its doors last year will go ahead later this month.
Do you know these men?
Police are appealing for help finding three men after an incident near a pub in Douglas.
