Spa gurgle sound at air intake?

[n8mojo]

Hello. Brand new pool just finished (owner build). We just got our spa jets hooked in and noticed a gurgling sound at the equipment pad. Enough to notice while in the spa about 60 feet away. Pentair vsf running at 2500 in this video:

Is this a normal sound? Can it be reduced?

 

[1poolman1]

Normal-Yep. Reduced-nope (unless you turn down the rpm).

 

[n8mojo]

Normal-Yep. Reduced-nope (unless you turn down the rpm).

Great. Just making sure that was normal!