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If you should be driving past the big Mosgiel sign and you discover the M is blue, try not to panic - your eyes are fine.
Rotary Club of Mosgiel member and Mosgiel sign caretaker David Brown said, over the coming months, each letter of the Mosgiel sign would turn blue for every $1 million raised for the proposed Taieri Aquatic Centre in Mosgiel.
Mr Brown said the first $1 million had been raised but turning the M blue on the Mosgiel sign had been problematic.
"We tried to put a filter over the light a couple of weeks ago, but it was so windy, it just blew away.
"We now have a blue-coloured gel that we want to put over the light fitting. It should stay in place better.''
He attempted to put it in place last weekend, but it was too wet to get up there, he said.
It was hoped the weather would be good enough this weekend to put the gel in place.
"It's a great way to show, visually, the great progress we're making on the fundraising front.''
The Dunedin City Council has set aside $6.4 million in its draft 10-year plan to replace the old pool but the community must raise another $7.5 million if wants its preferred design.
Mr Brown hoped, eventually, all the letters on the sign would be "swimming pool blue''.