If its a hot water system that is an air bleed valve at the top, open it
till water comes out with the system running, ck boiler water level
How do I open the valve? Don't I need to use some sort of special tool or key?
I have keys for the faucets outside, but they are way too big to fit the
- posted on November 25, 2003, 2:44 pm
You buy one, any hardware store.