It is the complex's third major setback since opening in May.
Lakes Leisure aquatics general manager Cam Sheppard said 51 of those incidents were caused by slide users breaking the safety rules, such as standing up in the slide.
The average age of those injured was 8.
Both Lakes Leisure and St John Wakatipu rural support officer Ron Smiles said ambulance crews had not attended any incidents at the pool.
Mr Sheppard said centre management had adjusted and tested the slide's flow rate, advised customers on safe sliding technique, added more signs and increased lighting.
"The probability of an injury is less than 1%, but the board of Lakes Leisure has deemed the exposure to the health and safety risk as unacceptable.
"It therefore leaves us no option but to close the slide and liaise with the designers on redesigning a corner of that slide that will be safer."
Both hydroslides were designed and built by Timaru manufacturer Aeromarine Industries Ltd.
Queenstown Aquatic Centre project manager Ken Gousmett said Aeromarine was responsible for the design and safe operation of the slides.
The company was asked to rectify the design fault.
Aeromarine operations manager Simon Robb said yesterday he was aware Alpine Aqualand was having problems with the slide and he would address the issues next week.
Mr Gousmett said the slides were under warranty and whatever modifications had to be made would not be at a cost to the council or Lakes Leisure.
Mr Gousmett said: "It would be very nice to go through these start-up months without any incident, but given the size and complexity of the project, this is only the second [problem] customers would have noticed."
QLDC chief executive Duncan Field said each of the issues was unrelated and did not give him any cause for concern.
"In a project on the scale of an aquatic centre, we would anticipate some teething issues. Overall, the building has been a tremendous success."
More than 14,000 slide passes have been sold since the centre opened.
