Due to the COVID-19 pandemic, aquatic facilities were initially closed but then allowed to open with strict public health measures in place. However, it is unclear how these measures impacted pool operations. This study surveyed municipal pool operators in Ontario regarding what public health measures were adopted during the pandemic (March 2020 to March 2022). Results were reported using frequency descriptions and t-tests were conducted to compare responses during and after the pandemic. Overall, 48 pool operators participated, representing a response rate of 23.6%. Every operator made changes to pool entry procedures, implemented social distancing measures, posted public health notices and reduced swim class sizes. Some operators had issues hiring enough qualified staff and, in fact, had to reduce their hours or even close the facility. In addition, labour-intensive duties included increased frequency of cleaning and health screening of every pool visitor. The changes to pool operations and closures may have adversely impacted the mental health of staff and the public, respectively. In anticipation of another pandemic, it is recommended that pool operators provide training and support to their staff. Also, future pandemic guidelines ought to address both public health as well as occupational health and safety best practices.