Welcome! Here are the website rules, as well as some tips for using this forum.
If you've found help here, check back in to let us know how everything worked out.
It's a great way to thank those who helped you.
Sight glass full won’t go down
My main concern is that my sight glass water level will not go down. It’s been a little touchy in the past with fluctuations but now I can’t get it to go down. I added a little bit of water to the system over a week ago because it was close to the bottom. I did not fill it to the top but now that its filled up it won’t go down. If I take enough out I can start to see it fluctuate at the very top but then it fills back up. I cleaned the glass and the opening below it. Filled right back up. Also, I get loud radiator knocks that I didn’t used to get.