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  1. H

    Non invasive leak detection

    I've been asked to investigate pressure loss in a heating system. Pressure relief valve is ok. Expansion vessel is OK. Boiler heat exchanger is OK, plus it's a new boiler anyway. Cannot see leaks under the floors. But there is one screed floor with one radiator. The pipes are copper in a...
  2. H

    Main combi eco30 pressure fault

    sounds like the expansion vessel in that case.
  3. H

    Potterton boiler recommendation

    What ever boiler we choose, it's bound to be so environmentally friendly and so efficient that land fill receives 5 boilers in the life time an 'inefficient' boiler lasted.
  4. H

    Potterton boiler recommendation

    Hello, have a potterton Promax 30sl, 6 years old and the heat exchanger is leaking. The new boiler, should I avoid potterton altogether? Any good ones to recommend when I get an engineer out? Thanks.
  5. H

    Pipe Insulation, foam vs cooltherm

    I've usually always used that grey foam pipe insulation to insulated heating pipes, but I've been thinking, for domestic work, is it really worth (for the customers gas bill) going for that cooltherm kingspan foil lined pipe insulation that I see on commercial jobs? Thanks.
  6. H

    Expansion Vessel and water hammer

    Good morning, I've just been asked that if someone has a tap which shuts of the water abruptly, such as the cartridge valve taps and water hammer occurs, would fitting a small expansion vessel close to the tap relieve this? To be honest I have no idea but I can find the logic to this question...
  7. H

    The Good Morning Thread

    Good morning, enjoying a filter coffee here :)
  8. H

    Monobloc tap hose connections

    Thanks chaps. It doesn't fill me with confidence to say the least, but I'll give it a go. Maybe some hawkwhite on the threads, only kidding ;)
  9. H

    Good luck with that!!!!

    I see what you mean, but there are laws about gas and unvented cylinders for safety reasons due to explosions ect. Then again I've known DIYers who've bashed out much better jobs than people I've worked with!
  10. H

    Good luck with that!!!!

    What's wrong with DIY? Every 'trade' will have people who do it themselves, but there's plenty of people who will pay for someone to do the job.
  11. H

    Monobloc tap hose connections

    Evening chaps. I've got a Bristan monobloc mixer to fit. Now, the 10mm ends of the hoses fit a few inches deep inside the body of the tap, so can't get a spanner on them. Can't use a box spanner as even if I could get one on the hose, I wouldn't get it off as the other end is 1/2" bsp! What do...
  12. H

    20mm MDPE 1 or 2 metres - Wanted

    Hi, I'm in Bucks, cheers.
  13. H

    Pipes in concrete/screed floor

    Ok chaps. What I've done is used 25mm flexi conduit to sleeve the copper, to protect it. No insulation on it as it's above celotex boards, so it's in the warm part, just to be covered with screed.
  14. H

    20mm MDPE 1 or 2 metres - Wanted

    Really only need a few metres, if any spare! Cheers.
  15. H

    Copper pipes and cement mixes

    Thanks for the advice chaps.
  16. H

    Thread Locking Glue

    Well, typically with tools anything can be undone, but 243 is medium strength. Does the thread locker need to seal against water also? If so, can try Loctite 577, it's superb at thread locking. Loctite 620 has a lot of strength too. Another high strength thread locker is 270.
  17. H

    Copper pipes and cement mixes

    I know that wet cement/concrete can have a reaction with copper and begin to attack it, so we sleeve it, but can dried set concrete still have any affect on copper pipes installed later on?
  18. H

    Old lead pipe leading into house

    Before you turn the mains off in the street, talk to your neighbours as quite usually the stopcock out in the street will isolate several properties.
  19. H

    General Quote Query

    This new radiator will be the last of the circuit, so flow in and straight out, so the balancing of the rest of the system should be ok, but I will check. Nothing to lift up to fit the pipe, all open floor exposed. A pretty easy job to be fair. Insulation not necessary.
  20. H

    General Quote Query

    Not doing much to any private work myself.... ....what do you think is a reasonable quote including materials to add a radiator. Details are, end of existing system to connect to is 4 metres away, so a run of 8 metres which is the sum of the flow and return pipework 800x600mm double...

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