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Hi, Sorry for the slow reply. I thought I had better post the outcome. Called a plumber in the end. Well, four of them. One said it wasn't cold. Another ran away, almost literally. Third didn't want the task as there was a light carpet. I wasn't there, but I'm told the 4th tried to clear it...

Hi, I tried pointing the flow valve into a bowl and raising the pressure on the boiler gauge to 1 bar. In terms of flow, there was clear water coming out but it was not fast. Hard to describe, but was projecting a couple of inches or so beyond the valve before falling to the bowl. Dave.

That's correct. I'll try that if you think it's worthwhile. There is some heat from the flow side and the flow pipe itself is baking hot.

I tried closing all other radiators. No change to the problematic one. To confirm the return isn't blocked, I connected a hose to the drain off on the lockshield valve. Turned off the TRV. Let the water flow out the hose and opened the filling loop. Water continued to flow out. I'm at a loss...

The valves are new, and the flow side pipe and side of the radiator gets hot. I didn't check the flow side pipe for flow, given it gets red hot. Am I incorrect to assume that? There was a decent flow from the return with the filling loop open slightly.

Hi, I'm trying to make a radiator in a living room heat up. The flow pipe at the radiator gets very hot. Return stays cold. It's as if there is no flow through the radiator. Temperature difference is much greater than on other radiators. The system is on 10mm pipe. I presume, but don't know...

Hi, Just to conclude the thread, my diagram, as suggested, is nonsense. The light switch is by Hager and has a loop terminal built in as ericmark suggested. Search "Hager Sollysta" for examples. Thanks.

Hi, A family member has a switch in a bedroom. The house was recently rewired and passed the tests etc.etc. I'm not claiming it is incorrect, but merely trying to improve my understanding. (Out of curiosity more than anything else). Neutrals are typically "in the switch" for this house. The...

Hi bobasd, I didn't do the dot n dab. Believe me, I wish I had ripped the thing off in the first place. Thanks for your help. Dave.

Hi, I scraped off the still wet scratch coat after I saw the cracks forming. I didn't take photos. It seems to be dot n dab plasterboard. When I first got to it, it was uneven and had patches of undercoat plaster. I levelled what I could with bonding plaster. Then I skimmed with multifinish...

Hi, I skimmed a wall but ended up with a slight bow into the wall which I think I can correct with another thin application of multifinish plaster. Essentially, it's not quite flat. I guess my preparation was insufficient. I left it two weeks, applied liberal amount of 2:1 PVA, let it dry...

Hi 23vc, Just to let you know, I followed your advice and all went well. Thanks again. Dave.

Many thanks. Most appreciated. Regards, Dave.

Hi, Firstly, I'm 100% DIY so bare with me. I've been asked to skim some walls for a friend who's had a tough time. Long story. I've had skimming success before but I'm now out of my depth :) 1. I've put PVA on the painted walls. 2:1 ratio. I just couldn't scrape the paint off so hoped it...

Yes. Is does to me. Personally, I think he has piped it up backwards, but I'm often too picky. I wouldn't have left it that way.

I think they are bulldog 2. The installers took the boxes away. The technical guide for bulldog 2 doesn't mention setting to reverse. Good point about having a TRV in the corner. I guess I will just leave them to be consistent. Thanks everyone.

Thanks ianmcd. I aim to swap out the old radiators at some point soon so I will switch the TRVs then, and add the filter to the return near the boiler.

World's latest reply. Sorry Fran, I didn't get a notification. For the record and anyone who comes across this thread, I did do it. Added DPC as suggested. It certainly improved things, but I think I should have put the concrete up to floor level rather than including the chipboard on top. The...

Hi, I'm not a plumber or tradesman. I've just had a new Ideal logic c30 combi boiler fitted that replaced a very old Baxi system boiler. TRVs were also fitted. I asked the installer which pipe was flow, and which was return (so that a magnetic filter could be added later). He said when looking...

Hi, I did support under the joist with wood, not brick though. I made it as tight a fit as I could. Forgot to mention that. What ratio of sand/cement/ballast should I use? I'm no builder.. I've built bases for sheds, but that's my limit so far. Dave.