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Have to say this sounds like the easiest way forward, and I suspect this is what he'll do. Problem is you can watch it for five minutes solid and not see a drop, then it'll give a squirt and a gurgle, so I don't think I'll be able to tell if it's fixed or not. I'd give it a go myself but I'm...

This makes a lot of sense, thanks. Because they are all apparently very badly designed and leak after operation. I'm not the gas safe engineer here, so I'm basing this on the advice I have received on diynot from many, many gas safe engineers. The how-to section also advises in bold not to...

Thanks Peter, that's what I thought. I'll make sure he replaces the PRV. Does the system have to be fully drained for this or just depressurised?

Just an update - it seems like it's air that's in the system, I couldn't get anything to happen when I tested the released gas. The pressure in the system is also going down now, from about 1.25bar to 0.25bar in the space of a week, so I have to keep refilling it or the boiler refuses to...

Guys, I had a HeatTeam engineer round to recharge my expansion vessel last week. Yes it's a DIY job but it's covered under my plan so it's better the expert does it than I make a mess of it. He discharged the pressure in the system using the red PRV, which I've read on here many times is a...

Cool, thanks Pete. I'll give it a go. It's a while since I did the hydrogen / nitrogen / oxygen tests with a splint at school!

Do you think gas would form this quickly? It's a very old system as I said but there is inhibitor in it, I've still got the bottle from when the plumber did it. Sounds more likely that it would be air given how quickly it forms and it sounds like it's getting in near the boiler judging by where...

Hi guys, This topic must have been discussed a lot but I can't find anything specifically answering my question, so hopefully you boys can help me out. I've just moved into a house which has a brand new (one month old) oil fired combi boiler with a built-in expansion vessel, connected to a...

Looks good, thanks for that! Guess these won't seal water so much, so I still have the original problem :(

It sounds like a disaster waiting to happen...maybe I should just move house. Is there anything I can apply to the grout to seal it and make it more waterproof in the meantime?

Thanks Richard for the useful advice. Sounds like you know what you're talking about - I wish you had done my tiles! :D The strange thing is that out of two bathrooms and 50m2 of tiles overall, he went to the effort of removing all of the old tiles and replacing the green/blue plasterboard...

There are only two narrow walls which are tile-on-tile, the rest is tile-on-plasterboard, but unfortunately the tile-on-tile walls are inside the shower. Knowing this guy, I would not expect that it has been done properly. He told me it needed special adhesive but I'm 99% certain he used the...

Hi experts, I have an odd problem with my shower tiling. I had my bathrooms tiled four months ago. A couple of inches of grout started to discolour so I removed it but to my surprise it came out easily, like putty. The grout immediately above and below is rock solid, it's literally only...

I know how you feel - the boiler cupboard is like a sauna all the time. To make things worse, the builders didn't install any central heating valve in my system so the hot water from the internal heat store floats freely around the system warming all my radiators up whether I want them hot or not.

That sounds like a poor install rather than any fault with the boiler. Apparently it was very common to have installation problems but I'd have to blame the builders / original contractors for that. I'll replace the boiler when I absolutely have to, rather than pre-empt a possible failure by...

The problem is that - as with every other gas-related question - if I asked ten different gas safe engineers how often the PowerMax should be serviced I would get ten different answers. The people who should really know are the manufacturers, and that is who I got to do the service. Nobody...

By "does that sound about right?" I meant do the actual figures sound reasonable. I saw the actual readings on his meters and he discussed them with me. The CO varied between 9-11 but hung mainly around 10. The CO2 figure seemed pretty solid at 7.5%. I wasn't unsure of the figures I saw, just...

Ok, thanks Dan, everyone. Looks like I need to give them a call. Cheers, Chris

I have inspection hatches fitted and he had a good look at the full length of the flue. I'll call them and let them know about it. Note that it's only going bang very infrequently, so it will be very difficult to diagnose when they get here because I can't reproduce it. I have a service plan...

Yes, he did the full analysis and seemed very happy and everything was in order. Good gas pressure, but I can't remember numbers. The CO reading was 10ppm, and the CO2 7.5, does that sound about right? He said it was very efficient.