Is it the sort of thing I can change myself? I've done some bits & pieces, but am no expert. Does the system need draining down, or is it enough to do it when the system is off?
Last year I replaced a Bottle Air Vent in my airing cupboard (small 3" brass), as it was leaking. Today there is another similar leak, but in a differnt component. This time it's a larger steel component (about 6" high, 2" wide). It's got what looks like a pressure-release valve on to...
Have noticed the the Bottle Air Vent on the Primary Return pipe from my Heatrae Sadia Megaflo (indrect unvented system) to the boiler is leaking water, as the washer on the plastic cap has perished. I've replaced the washer, and that's stopped the leak, but I'm no expert (I didn't even know these ve...
