Why would I replace the boiler? What looks like corrosion round the area of the valve is just insulation, it actually looks really bad in the picture doesn't it!!!
The auto air vent I have got is very similar to the 7703/4 parts in that link. I seem to recall it has a button on the top which the existing one has not got. How do they work exactly?
Also, how do i fit it? Do I need to drain down the system? Do I need any sealant on the joint?
Thanks guys.
The auto air vent I have got is very similar to the 7703/4 parts in that link. I seem to recall it has a button on the top which the existing one has not got. How do they work exactly?
Also, how do i fit it? Do I need to drain down the system? Do I need any sealant on the joint?
Thanks guys.