Lubrication the only maintenace maybe needed
If the pump pumps smoothly--no squeaking, easy to pump--you don't need to do anything. But Benny is right...you need to use it, 'cuz lack of use is far more destructive to ALL equipment than continuous--even hard continuous use.You'll need to use a product in the tank to prevent odor...I think Odorlos is your best choice. Be sure to follow directions if you want it to work.You might want to check out the link below to learn how to operate and maintain your toilet and tank.