I sent an email to DCL about this issue and this is the email that I received from them:
8/7/15
Dear Kathy,
Thank you for choosing a
Disney Cruise Line vacation!
We regret the disappointment expressed in your email.
Please be aware that pool hours vary for each sailing and are not
published in advance.
Be sure to check your Personal Navigator once onboard for the latest
information.
Kathy, I hope this information has been helpful. If you require further
assistance with any other inquiries, please feel free to contact us.
We look forward to sailing with you!
Have a Magical Day!
Joe
Email Communications Agent
Disney Cruise Line