Odd noise from return fittings

[300winmag]

Now that I have my spillway on a schedule, the pool is much quieter for 95% of the day. As such, I can hear things that I previously could not. One such thing is a gurgle or clicking/popping out of my return fittings to the pool.
I dont really see any major cavitation, but there is just a bit.




Is this normal, or should I be concerned?

 

[pooldv]

It is probably your SWG, assuming you have one. You can add your pool info to your sig as shown here, Pool School - Read This BEFORE You Post

To post pics from Photobucket copy the IMG code to the right of the pic and paste it in your post. That will embed the image in your thread.

 

[300winmag]

Sorry, posted from my phone. I thought my sig would still show up.
Yes, I have a swg.

 

[pooldv]

I checked the sig box, let's see if it stays checked.