Can COVID-19 spread in the pool?

According to the CDC, there is no evidence of the virus being able to spread in the water.

There is no evidence that the virus that causes COVID-19 can be spread to people through the water in pools, hot tubs, spas, or water play areas. Proper operation and maintenance (including disinfection with chlorine and bromine) of these facilities should inactivate the virus in the water.

CDC – Water and COVID-19 FAQs