Sight glass issue

[ChuckCollins]

Hi
I have a sight glass on my HLT and when I have my pump on it pushes
water up and over the top of my sight glass is this normal ?

 

[Hammy71]

Gonna need a picture of the installation or something. Is your sight glass attached to your kettle valve or something?

 

[ChuckCollins]

yes

 

[Esmitee]

Whata you have a "T" with the sightglass attached inline with the ball valve? If so, that's most likely why.