We have a Megaflow which has lost pressure. The overflow pipe outside isn't dripping, though.
We have followed the instructions but the lowest hot water tap never stops running! Yes, the mains is well and truly shut off, and yes, the system is 'off'.
You can see from the photo that this is what the pressure valve (?) looks like. I am wondering if our failure is something to do with that black tap on the flexible hose (to the right of the 'Honeywell' logo) which has been left in an off position. If, whilst they system is on, you turn that tap to 'on', you hear water flowing and the black needle on the dial rises til you shut off the tap... what is it doing??
We recall we were once told that there was 'additional step' over and above what the printed sticker on the side of the cylinder tells us to do but damned if we can remember what but I suspect it has something to do with this mystery tap, in-line with the expansion chamber (the big red thing, I assume!).
Any ideas? Be kind, I am a radiographer so can talk you through the physics of an MRI scanner but am less good at domestic plumbing!
We have followed the instructions but the lowest hot water tap never stops running! Yes, the mains is well and truly shut off, and yes, the system is 'off'.
You can see from the photo that this is what the pressure valve (?) looks like. I am wondering if our failure is something to do with that black tap on the flexible hose (to the right of the 'Honeywell' logo) which has been left in an off position. If, whilst they system is on, you turn that tap to 'on', you hear water flowing and the black needle on the dial rises til you shut off the tap... what is it doing??
We recall we were once told that there was 'additional step' over and above what the printed sticker on the side of the cylinder tells us to do but damned if we can remember what but I suspect it has something to do with this mystery tap, in-line with the expansion chamber (the big red thing, I assume!).
Any ideas? Be kind, I am a radiographer so can talk you through the physics of an MRI scanner but am less good at domestic plumbing!