Mistking nozzle squealing noise?

[Beman]

My Mistking nozzle makes a squealing noise... Is this normal? I have only ever used RO in it and it has done it since day one of use when I got it in December. I have tried to run it unhooked but when I reconnect it the noise is still there?

 

[nightanole]

You could also use some soap or clr. It might just be a bit off from the factory, and may have a wee bit of gunk in it.

 

[Beman]

You could also use some soap or clr. It might just be a bit off from the factory, and may have a wee bit of gunk in it.

I was afraid I would break it if I took it apart. The videos are really helpful!