Launceston City Council is itself included in the roll-out, having negotiated a unique offer for its employees.

The deal has been questioned by Launceston City Council alderman Jeremy Ball. He expressed concern over the flexibility of the memberships at an August council meeting.

General manager Frank Dixon said the membership deal was fixed by Launceston Aquatic, but Launceston City Council had provided added value for its employees, an estimated 500 people.

He said he hoped businesses would follow suit.

"What we also do with employers is we encourage them to offer additional incentives to encourage people to take on activities at Launceston Aquatic," Mr Dixon said.

"We welcome any other employer to be involved and, while it is a fixed membership arrangement, we encourage flexible arrangements from the employer."

The corporate membership rates are set according to the number of employees that have a membership at Launceston Aquatic.

A level one membership offers a 10 per cent discount for businesses with five to 10 employees enrolled. Level two offers a 15 per cent discount for 11 to 14 employees and the level three membership is a 20 per cent discount for 16 or more employees.

Launceston City Council employees are eligible for the level three discount.

On top of this, its corporate membership includes waiving of the set- up and administration fee ($30) and a 20 per cent discount on visitor passes.

Corporate memberships are available for three, six or 12-month periods and are offered on three levels based on the number of employees to sign up.

Alderman Ball said his inquiry was a bid to ensure the average ratepayer was not missing out.

"The reason I was looking into this is that I didn't want to see the individual who goes in and pays $5.50 to be the one who gets slugged when a lot of other groups are getting big discounts," Alderman Ball said.