Dear [Leisure Centre],

I am writing to ask if the cleanliness of your leisure centre can be improved. As a member, I am concerned about the condition of the gym and swimming areas. It would be great to have a cleaner and healthier environment for myself and other users.

I'm sure you will agree that it's important to provide a safe and healthy environment for everyone who visits.

Thank you for taking the time to consider my request.

Yours sincerely,
[Name]
[Address]