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Only on a solid fuel system is there a requirement to fit a galvanised header tank (because SF cannot be fully controlled). Bobs 100% correct about thermal cut outs being a requirement on all Immersion heaters since the terrible accident of a baby being scalded to death by one over heating quite...

Setting the pressure to 0 won't do much, you must have an open end whilst recharging the vessel. Easiest way for a DIYer to do this is take the bleed valve out of the bathroom radiator and let a 2nd person direct the flow of water into a bucket whilst you pump the expansion vessel, eventually...

Have a look at the filling loop and make sure it's not got slightly opened by mistake. Don't forget to take the pressure off the system when pumping air into the ex vessel. NB You can compress air but not a liquid.

I was checking for a long run of primaries with very little circulating height. However from what you've said there seems to be plenty of circulating height on those primaries and a 4m horizontal run is not that excessive either.....in theory, if there's no back-fall, it should all work. Have...

It's probably going to cost him his job now. The only thing I can say about it is what if say he had interviend and the Isis bloke had then murdered him too. What a massive coupe that would have been for the Isis organisation. servotech

How long is the run of the primary flow and return circulation pipes? 28mm? What's the circulation hight like (this is the distance between the center of the flow and return pipes on the cylinder and boiler? servotech

Have a look at the gas route into the trade I think that you could find this an easier option, plus plenty of employment when completed. I wouldn't put too much faith in that level 1 evening course. The plumbing trade employees are often poorly treated by their employers too Andy! For instance...

You'll have to pad out the back of the cistern quite a bit if you fit a close couple. A false wall could hide the soil-pipe and at the same time pad out the back of the cistern.

There's something there that the boilers not liking. If you have motorised valves fitted then these are a favourite for this type of fault. It's looking like the CH one if you have an S plan (x2 motorised valves) if it's never tripped when the central heating's switched off. servotech,

Take it from me Dibby it's a minefield at times. We have to walk on a very fine line at times.

Just fill your sink with the hottest water you can making it overflow down the tube on purpose whilst adding bleach (at the same time) - that should clean it out. Take it from me taking overflows to pieces and reassembling them often results in something getting damaged. Overflows are full of...

The thing to remember is that not all compression cones fit properly into the different makes of valve. The nut was more than likely running out of thread before it tightened up the foreign cone fully. Glad you've got it sorted now, though it's always nice to know where you were going wrong.

I take it you've been calling our Tone "A pain in the bone" then Dan :LOL:

Yeah, that looks something like you need. TP do one as well... https://www.travisperkins.co.uk/McAlpine-DC1-BL-Drain-Connector-110mm/p/995365?gclid=CLG3gKrT-dICFUMTGwodnJMIpg. I think you will still need to shorten the spigot, because fully inserted it will go too far into the bend and be a risk...

Looks like you've got about 1" of drain before the bend. Ok I would cut a bit off the multikwicks spigot- as long as it's got a couple of fins in the drain it will seal. Don't start chopping out the concrete around it because you will smash the drain and it will cost a lot of money to fix it!

I'm thinking, your thinking, empty all the water out of a small radiator and then put it back, but don't vent it, leave it full of air, right ? Good thinking batman!

Sounds like a balancing issue to me. Try turning the other rads off, does it get warm now? servotech,

I'm going back tomorrow and I've now that I've had more time to think about it... I think that the fact that the noise seems to be coming from the boiler I'm now thinking is a ruse, so I'm going to change the tap inserts instead one by one and see if that cures it. It is the most common cause...

Yes, it's not that type of noise. Normally I would look at changing the tap inserts until it stops (with this type of noise). Customer is convinced it's coming from the boiler and it does seem to be. servotech,

It very much sounds like it's a plumbing problem yet it's constant the only way to silence it is to switch the boiler off which instantly stops the noise. The noise returns as soon as you switch the boiler back on and you can feel a constant vibration in the cold water mains pipe leading up to...