Should I change the water pump when replacing the timing belt on 2000 Acura Integra

When should I replace the timing belt and should I replace the water pump at the same time. Please include costs.
Thank you

Asked by for the 2000 Acura Integra
Yes. If you are changing the timing belt you might as well change the water pump and tensioner at the same time. Advance auto sells a kit for about 135.00
2 answers
When should I replace the timing belt and should I replace the water pump at the same time. Please include costs.
Thank you