I found the valve and let out what seemed like galleons of water. I then went back to the boiler and notice the needle had dropped to around2, but slowly started going up.
I then checked on here, and majorevent suggested checking the inlet hose. It was slightly open, but couldn't be closed...
3 litres removed, and still the needle is on 3. It could be a long night.
I'm not sure what a drain off valve would look like, so seems like I might be best to continue with this.
Would it harm to leave it until tomorrow?
I have a Baxi Main combi boiler and decided to leed one of the rads. One rad seems to have load of air in as it took a few minutes to bleed. I then notice the pressure on the gauge was below 0.5, so topped up the boiler. I stopped when the needle was at around 1.5, but the needle continued to...