Posted by jtown on January 20, 2000 at 21:24:32:
In Reply to: Re: Cleaning gauge glass posted by Steve K. on January 20, 2000 at 20:26:15:
While petcock is open also open the top valve to put steam through it. To remove glass, look down at the bottom nut and turn it counteer clockwise, just like a food jar, to open it. Looking up to the top goes the same. There are big soft rubber washers that get compressed against the brass and the glass by the nuts. When you have the nuts loose twist the glass back and forth to get it free and try to work it upward enough to pull the bottom outward to remove and clean it. Write the diameter and length on your boiler in case it gets broken. If the previous owner has removed it, it should come out ok. For readers with glass that has been in place for 85 years they may break it getting it out. Make sure you have no leaks including air vents and blow down regularily. That will keep the glass cleaner and save your boiler too.