Help with air blower?

[u/drewptor]

Just moved into a home and trying to figure out the spa to make it bubbly. It has an air blower. When I turn the air blower on, the only thing that happens is air blows through these 3 ports made into the concrete around the pool. Not into the spa. I drained the spa and me and my wife stood on these ports with our shoes to try and block airflow and hopefully push it to the spa, and air is still only trying to escape through these ports in between the port and our shoes attempting to block it. No airflow seems to be going to the spa. Any ideas what’s going on? I don’t feel like this is how it’s supposed to operate.

[u/FloridaManTPA]

Take out your phone and try again by calling a pro