Is this line okay?

[MitchellScott]

Hey guys. 

After kegging my first kegged beer, I did my usual FV sodium perc soak and put all my racking lines and spoon etc in the fb to soak overnight. I also used hot water as usual. 

I've just rinsed it all off after 24 hours and my racking line has gone from see through to a cloudy bluey colour (see pics). 

The line was a food grade line bought from my LHBS. 

Did you heat or sodium perc cause this and is it still OK to use? 

 

Cheers.