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Update on the situation.... There is adequate flow through both valves at each radiator valve. I have closed all valves and just had the pump serving one radiator downstairs on it speed 2. (It's a grundfos selectric 15-50). The radiator get hot pretty much all over. I've closed that one off...

Thank you for your help so far, I will indeed try the fernox again. A few other questions I have: 1). As for the balancing side of things, how is this achieved on microbore? 2). If there is adequate water coming from each of the rad valves when I test them to see if their are blocked or not...

Hi Rob, It's microbore pipe to all the radiators, I'd say that it is 8mm. The 15/22mm pipe is in the airing cupboard as you already pointed out. 1).When you say 'lazy pump' what do you mean? 2). With regard's block manifolds, would a powerflush make any difference in unblocking them? 3)...

Hi, the flow and return are indeed 22mm. I'm not certain where the manifold(s) are as I've not ventured to taking up carpet and floorboards yet. The pipe into the pump and from the motorised valve also gets hot when pump is running, as does the inlet/outlet of the coil of the hot water cylinder...

I’m hoping that someone on here can help. My partner and I have an open vented CH system, the pipe work is microbore. I’ve drained and refilled the system several times and circulated Fernox but the problem is this...when the heating is on, only some of the radiators are warm at the top and cold...

Can anyone tell me how to perform a factory reset (default all codes) on a galaxy 16+. I've now managed to get hold of a manual but I don't have the engineer code so can't restart the panel from the engineer options as the manual explains. thanks

I'm a newbie on this site and am looking for some help with a galaxy 16+. I've installed and programmed a galaxy 60 for my local scout campsite successfully and now want to install this gal 16+ in the garage/stores as i'm not able to run cables etc to this part of the site since it's a...