For those that don't know me, I'm new to the HVAC-R field, fresh out of Tech School, still looking for employment. In the mean time I'm picking up work from friends who know I've recently graduated from school. This evening I went to a house where they were complaining of a leaking boiler. First thought was expansion tank, but when I actually looked at the boiler I noticed the leak was coming from the Taco Air Vent. I unscrewed the cap to the air vent and I could see the the Schrader Valve gasket was deformed. It looked like it was pulled out a little. My question for those of you that know a lot more then me is should I just replace the Schrader Valve or just replace the whole Taco air vent? I would think just the valve, but I wanted to see if I was correct first.
Thanks for any help you can provide!