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He wont go wrong, if he follows the manufacturers servicing instructions. http://www.acwilgar.co.uk/Boiler-Manual-PDF/Potterton/POTTERTON%20PROFILE%2040e%20%20GCNo.41-605-40.pdf

swbjackson, Thanks for your comment. Im aware copper tube doesnt stretch, but expanding water water will creep into the pipework. That was my point and perhaps not clear, and more of an err on caution, for the OP. I didnt give any measurements, as I considered the OP would have his G3 guy to...

Thank you, Hifty. The valve should be replaced, which would not be much of a challenge, for someone who knows what they are doing.

No. I think you would sruggle to find anyone to say, Yes, its ok to fit an isolation valve to a pressurised hot water cylinder outlet. Expansion also takes place in the pipe work, dont forget. Closing the cold water inlet, would have the same effect as closing a valve on the outlet...

Loose jumper on a lockshield valve. While its making the noise, go around and turn all of the radiators to fully closed and fully open, and one of them will stop the noise. It may help to remove all of the white plastic covers on the lockshields, before you start, and have a pair of...

Only if you ask. Ive had many old weeping stopcocks replaced, by South West Water and they will fit you for a meter, but not with a meter. (If you dont have one already) Its only a blanking cap, where the meter would go.

The boiler comes on because the thermostat is calling for heat, regardless of the rad valve setting. Why would you have all the valves on 0 and turn the room thermostat up? If the room stat is calling for heat, and the radiator valves are off, the boiler will forever be trying to satisfy the...

When you heat water, it expands. Manufactures compesate for this by installing an expansion vessel within the boiler casing, normally on the back of the boiler, but that varies with each manufacturer. Because water cant compress to absorb the pressure, the expansion vessel is filled on one...

I bet it is! Where do you measure the temperature from, to the radaitors and cylinder? Check the boiler temperature, at the same time. Circulation problem, either by the pump struggling, restricted pipe flow, or blocked heat exchanger. All caused by sludge in the system .

Call your water authority, as it belongs to them. If you crack it, how are you going to stop someone putting their foot down it? They should open it/replace it for free, and they might even replace your stopcock for a plastic quarter turn. Dont ask? Dont get!

You could install a 440CDi, which will give you 20 litres of hot water, a minute, but if you only have 9 litres coming in through an old squashed lead pipe, it will only give you 9 at the most. (For example) Measure your incoming water flow, before you waste money on an oversized boiler.

Count the turns from closed to fully open, on both the hot and cold taps. You can sometimes get a worn O ring on the tap riser, as the spindle turns and lifts it. If you get water in, where the greased threads are, that can stop the washer lifting off the seat, as the water which is then above...

It could be any number of reasons, before you start to pull your bath panel off.... Have you checked your filters on the inlet to the boiler? They could be restricted and it may just be less noticeable on the other taps, as the feed to bath may still be 22mm. Do you have a pressure...

Being honest. Might be a bit extreme, but could you raise the floor levels internally, to get the fall on the pipe runs. It would bring the ceiling closer to your head, you would need to cut the bottom off your doors but you would have less skirting to gloss! Have you been back to your...

:shock: OMG

To add to FiremanT.... Not only do you have to get there but you also have to include for ... Liability Insurances, (against burning your house down, so it can be rebuilt!) Registration fee's! Qualifications and development! Memberships! Vehicle running costs! Road tax! Commercial...

Quite likely. Turn each stopcock off externally, or check the meter dials, and you will see which one is running. Allow enough waiting time for water levels to drop or rise in the cisterns and you'll find it.

How can he register the appliance to comply with regs and building regs, and complete the benchmark without ticking the NO box? Boiler outside? Frost stat? or built in? Must have a room stat :roll: Thats a minimum. Cheap means cheap!

Where's your gas meter? It could take 10 minutes to empty the cupboard! Shoes, hoover, shopping bags, ironing board, old tins of paint, recycling rubbish, coats....... Tightness test.....clamp on, meter out.....cut and vent (to an extent).....clip to support.....solder the joint.....meter...

Normal waste wouldnt block a drain.....normally. You might have a displaced joint that is leaking and washing away the backfill around the pipe. Get yourself a set of rods, and a small jet wash and clean it all out. Find a chamber downstream and slip a plunger up to see it at both ends. It...