Adair (65), who has been a professional coach at Moana Pool since 2004, has been appointed professional coach of the ASB 25m pool in Nelson and will start his new job on October 15.
Calder, the head coach of Swimsation at Moana Pool, has been appointed to the role by the Dunedin City Council.
Waves club president Matthew Heaton said Calder would look after the Waves squad in the morning session and Adair's two assistant coaches, Rhys Pryde-Wall and Amber Davidson, would coach the squad in the afternoon.
The Dunedin City Council has decided to appoint a coaching board that will be in chargeof appointing two professionalcoaches at Moana Pool.
Otago Swim Coaching Academy coach Gennadiy Labara's contracts expires on March 31 and the new coaching board is expected to be in place early next year.
"The Dunedin City Council is obligated to have two professional coaches in place for Moana Pool before then," Heaton said.
"Andy left the Waves squad in a good state and has had discussions with his swimmers to help them handle the change.
"It has been an unsettling time for the swimmers but the club will help them to get through the change in a positive way."
Distance swimmer Troy Balvert, the latest international from the Waves club, decided to return to Cambridge when Adair announced his resignation.
