A test event at Strathclyde Loch this weekend is expected to give a green light to improved water quality ahead of the Commonwealth Games triathlon in July.
The loch, in Strathclyde Country Park, had elevated levels of blue-green algae in a similar scenario to that which troubled the leadup to the Olympic Games open water swim and triathlon at the Serpentine in London's Hyde Park two years ago.
To combat the problem, Games organisers have created a designated swimming area, which has been separated from the main loch with a series of physical obstacles.
The water was treated with a non-toxic phosphorous-reducing chemical, again in line with moves used to fix the Serpentine.
New Zealand have a team of five going to Glasgow - which might be increased to six if Nicky Samuels' appeal against her inclusion only as a reserve is successful. They have solid medal chances, particularly in the mixed teams relay, where they won the world championship gold medal a year ago.