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OK, so in the light of day today it looks way worse than I thought. My unprofessional opinion is that it's historical (and possibly still progressive) subsidence at the front corner of the house, but it's a not-very-well educated guess really from reading various forums so any input from anyone...

Just realised there's a tool on google street view which enables you to see photos from previous years. Going back to 2008, the brickwork looks identical (no evidence of any change to brickwork or mortar). Hopefully if I go and take some pictures from varying distances it will be possible to...

We're looking at purchasing a house, but there's a 3mm (ish) crack that runs diagonally approx 10ft along the mortar line at the side of the house from towards the middle down to about 4ft up near the front of the house. One of the bricks along this step is cracked down the middle and it looks...

Actually, it was a self appointed "expert" on here that put me onto thermal stores. I asked my plumbers opinion and he also recommended a thermal store, so perhaps the braindead are a bit closer to home than you think ;) After conversations with a number of other plumbers and friends with both...

I suppose the chance of all of the safety elements failing and leading to the boiler producing >100C water and the relief valves not opening and the thermal cutout not working is virtually nil, if the system is maintained on a yearly basis. I think I'm convinced, it's just I'm a bit stubborn...

I never said I know it all, all I've done is asked questions and asked for facts/reasoning rather than anecdotal evidence or "just trust us". I'm an engineer myself (instrumentation) so although I do use google for research, I have a good understanding of flow/pressure/temperature but I have no...

To be honest I don't know who to trust! The manufacturers have a vested interest (obviously!) I've had several conflicting opinions from plumbers on here and face to face and most installers are biased because of ease of installation/profit or other reasons rather than experience on what happens...

Do the standing losses make it less efficient than any other system? i.e. don't you get the same standing losses with an unvented system and a vented tank with CWS? If not then why do you get greater standing losses with a thermal store? With the sludge (I presume you mean in the tank itself...

http://www.plumbcenter.co.uk/en/heating/cylinders-accessories/unvented-cylidners/heatrae-sadia-megaflo-eco-plus-indirect-cylinder-300ltr/ I think this would be about the right size, but very pricey! I'm guessing you could add another £1000 to that with installation, expansion tank, PRV/TRV, TCV...

I'm up and across from you, East Yorkshire. A few people have tried to put me off thermal store now and recommended the unvented system but I'm still not sure why the unvented is the preferred option? Is there much difference in efficiency (18KW gas condenser boiler input) or cost (if an...

Thanks Dan. I am thinking about solar. I always said when I bought a house it would be the first thing I'd do because I was a bit of an eco freak, but I haven't stuck to that! Hopefully in the next couple of years though! It just seems so much cheaper to go TS though, when you take into account...

Thanks! I've only got about 10cm of pipe between the concrete floor and my stopcock, so I guess I'll only be doing it... once!

Looks good! Thanks. I'm just a bit worried about doing it on the blue mains pipe in case it damages it. Is this a commonly used tool for this kind of job?

Just had a look at the end of our cul de sac and there's 2 stop cocks, so I'm guessing one of them turns off several or all of the 6 houses down our street. Think I'll get a plumber in, as I'm not being responsible for cocking the job up and nobody having water!

Hi, I need to upgrade my 15mm Cold Water Mains pipework to 22mm. Under my sink where the stopcock is, it goes from the blue 25mm pipe (out of the concrete floor) through a 15mm stopcock and straight onto 15mm pipework. 2 Questions - 1) Do I need to replace the stopcock? With it being 15mm...

It's 4 bed / 2 bathroom / downstairs toilet, 6 sinks/taps total. There's only 3 of us living in it at the moment but got to think long term!... I know how a thermal store works. Seems a better idea to me to have a heat exchanger with cold water mains running through it than to have a big tank...

Thanks, I'll look at sorting the pipework first then as I guess I'll need that no matter which system I choose. What's so bad about thermal stores? I drew my own conclusion from looking online and when I mentioned it to the plumber he seemed to agree it was a better and cheaper idea than...

Hi, I've been looking at options for mains pressure hot water in our house, as the vented hot water tank we have currently is not up to the job to run 2 bathrooms / kitchen, utility, cloak toilet etc. I had a plumber give our system a once over today to see how feasible it is to upgrade, and...

I have just done some research on the thermal store too. If I understand it correctly, it's basically like the system I have now, but a second coil runs through the cylinder so that mains cold water can be passed through to provide mains pressure hot water which is then mixed through a...