Sight Glass Question

[Padstack31]

So I bought three of More Beer's sight glasses....

MoreBeer | Sight Gauge - 16''

I just conducted my first boil on my Keggel and noticed that as the water approached boiling water would sprout out the top....

Anyone encountered this, how do I solve it...

 

[Bytor1100]

I sometimes have this problem. When boiling I cork off the top of the tube with a small cork that I picked up from lowe's.

 

[Bobby_M]

What kind of kettle bulkhead do you have it threaded into? If there are female pipe threads inside the kettle, a short pipe nipple threaded in will stop that from happening.

 

[Bytor1100]

I know mine is cause because there is a hole in the lower skirt of my keggle that funnels the heat up right on to my sight glass connector. If I could have redone it, I would have moved it, it was just a coincidence it was placed there.

 

[Bobby_M]

The reason it happened on mine is that the coupling was welded in flush to the inside wall and the boil bubbles had no problem making the turn.

 

[Bytor1100]

By the way, thanks for the sight glasses Bobby_M, they have been working great. I use the same brush I clean my keg dip tube to clean the sight glass after brewing and makes it easy. I wouldn't mind buying some replacement high temp o-rings for when mine fail. Do you have the MCM number for them?

 

[Bobby_M]

Did you get the 1/2" tubing? those would be #111 just like the keg posts.

 

[Bytor1100]

yeah, they are the red high temp o-rings