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.
Overnight delay means today's sailings will set off late
A number of Steam Packet sailings will be setting off later than scheduled today, Saturday, November 1.
Fireworks displays to kick off with event tonight
Fireworks displays are set to go off with a bang around the Island, starting tonight.
Second night of police roadside car checks finds less defects
Police say their second round of winter car checks found less defects than the first night.
Society appeals for help about traditional gypsy caravans on the Island
Do you know of any traditional gypsy caravans on the Island?
Government issues bird flu warning after infected buzzard found
The government's warning people not to touch sick or dead birds after a wild buzzard which died of bird flu was found in a garden near Bride.
Will new UK law be brought in to protect Manx renters from mould?
What consideration is the government giving to bringing in a UK law which protects renters from damp and mould?
Local Economy Forum launched to propose alternative to 'destructive' min wage increase
A Local Economy Forum is being launched to highlight what it's calling the destructive impact of the planned minimum wage increase.
Group raising money towards legal costs for new Summerland inquest
A campaign group is raising funds for a new inquest into the tragic Summerland fire of 1973.
