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Thanks for this. Do I need to shut the valve off? As I say the problem is I cant shift it. Don’t want to out a breaker bar on it as I could damage the pipe, you know how cast iron pipes can fracture. If I backed off the spindle nut without shutting the valve will it leak out? If I could repair...

Yes there is a main stop valve in the garden. That’s not what worries me, its damaging the pipe as I try to remove the valve and getting stuck. Those nuts ain’t been moved since Moses.

Redoing the kitchen and plasterwork at the moment and have just removed some cabinet carcasses. I've always wondered where the stopcock was and I found it behind some units. Boxed in by previous owners and completely inaccessible. However, the nightmare is that it seems to be leaking. Not a lot...

I live in a 3-storey house with an open vented system, fitted prior to our arrival 3 years ago. It's a standard open system, but we've had leaks and problems over the last year (it's a mix of plastic and copper, push-fit and solder, metric and imperial....) so the bottom line is that I am...

Well, no end of experts who weren't there. Firstly the entire penetration around the drain cock was in a state, never mind rotten insulation from there all the way to the ground. Even if it had sealed down, that fix would have been a cheap bodge, which doesn't happen in my house. And yes, he...

Thing is I am actually thinking if I use this opportunity to change the system. It's a new boiler, so I'm not changing to a combi and TBH the combi systems I've had - even the 30kW jobs - didn't fill a bath as quick as a tanked system, and with 4 of us showering every morning, the tank does the...

I checked with Joule directly and they confirmed their cylinders can be used on vented systems as is, you simply don't need to order or fit the vent kit equipment and vent back to the header as usual.

What's your experience that leads to this view?

I note that the advice from Worcester Bosch on their unvented tanks is that they can be used on vented system; the only advice is that the expansion vessel should not be fitted to the inlet control group. So I guess perhaps the Joule cylinders would be the same, and I note that the specification...

Hello All, After my experience with a leaking RM cylinder (see other thread!) I have decided to replace the new (defective) cylinder with a more expensive unit, taking the opportunity to get a slightly larger tank with a decent warranty. I am still in the midst of research, but can anyone let...

You are correct. No hot water since Xmas Eve, a plumber on-site and a freshly delivered new cylinder there from the only supplier that could do before 10am next day? Get real. I'm not going to send it back because a gasket is off-center, am I? Gasket may be fine, just the hole cut off-center. A...

Well, that maybe a valid observation, but not a helpful comment. Because 1) not possible when it's boxing day and the plumber is on holiday and you need it the next day and the only place available is a supplier, and a reputable one at that, and 2) RM should package their products to withstand...

Yeah, we took pictures of the leaking gasket, which as I say should not need to be disturbed, should be sealed right out of the box ready for connection. So while he didn't ask for any extra cash I him paid 3 hours extra labour. Maybe I'm a mug but I thought his whole attitude and standard of...

Hello everyone, just an update on what's happened. I had a look at that drain cock, and had a go at moving it. Not only could I not move it - although there was a lot of play on it as the gasket and copper moved about to the point I think I could have broken it - but it was clear that the tank...

Looks like the tank filled up again through the night. The drain hose was dripping heavily this morning (guess in my state of mind last night I didn't shut off the drain cock properly, what a moron) so when I opened the drain fully cock it poured water for about 10 minutes before stopping. When...

Right chaps, now that the leaking has stopped I got in behind the tank and got a couple of photos. It does seem indeed that instead of a blanking plug, someone has fitted a drain tap to the secondary return hole. The water seems to have been running along the spout and then down between the tank...

Right... tank drained completely. Hosepipe in boiling water then jammed onto the drain cock. Other end down the bog. See pic for a laugh. Thanks for the advice JimCrow but I can't face houking about in the loft today, so I just shut off the stop cock from the header tank. Whatever that other...

Thanks for that. Sounds like good advice, but I'm terrified I make it worse... but then don't suppose I can. If I drain the tank (going to have to cut a length off the garden hose...) then even if I break it I'm no worse off. Wife is seriously unhappy at dripping water, so I'm going to drain...

Okay it seems to have got worse. Basis your "could make it worse" comment I went back up and backed of the square bit a turn, and immediately heard (and saw) water spurting out. So I tightened it back round as tight as I dared to (worried that the tank is corroded and it might just break off). I...

Happy Christmas all! I have located the leak on the HW cylinder, and it is coming from the "secondary return". This is a Hercal 3 1200 x 450 cylinder, and there is a "secondary return" on the rear of the tank at the top above the cold feed. There's some kind of valve on it, a square spindle...