Kettle Cleaning w/ sight glass

I believe many of you don’t scrub your BK spotless after every use (correct me if I’m wrong). Now that I’m using my Boilermaker kettle for both BK and HLT I have some questions.

-The Blichmann kettle has a sight glass which gets some sediment stuck in it. I haven’t explored cleaning this out every time yet if it’s necessary. Thoughts?

-Would any left over organics on the beer kettle after a boil impact anything for my next use as an HLT for the next brew day?

The Blichmann kettles normally come with a brush for the sightglass. If it were my kettle, I would hose it out, run the brush through the sightglass, hose out again.

This^^

Mine came with a hex key that that one uses to remove a bolt in the top of the sight glass, so that the provided brush can clean it out.