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  1. J

    Weathershield keeps blistering and coming off every year ?

    Hi D . Thanks for reply. what openings ? cannot find anywhere water ingress to cause it! the wet you can see is water running paint on top of wall,down off coping, hence putting new drip strip on.plus Ali tape on top joints. as this photo shows you. will try anything , it’s a pain. do you mean...
  2. J

    Weathershield keeps blistering and coming off every year ?

    The whole house is normal render with no problems, so assume it is just bad render. the two small walls of my conservatory, which was built and rendered when wall was done, the top coat of render came off as I pulled the weathershield off. the top coat render was soaked under the paint ? scratch...
  3. J

    Weathershield keeps blistering and coming off every year ?

    Thanks conny, done all of that over the years, except leaving it bare, during summer, for a long spell, did it last year after we had the long heat wave. it only takes one shower and it’s wet again,so do it when nice and dry , weather unpredictable hear. wall is sound . as you can see, it is...
  4. J

    Weathershield keeps blistering and coming off every year ?

    Hi Robin. yes, put aluminium tape on joints, to see if it helps. that was last year, so didn’t help ! yesterday, put felt strips on edges to form a drip strip , siliconed them and screwed on,as coping only sticks out 20 mil, ish ! wondered if water was going behind render.
  5. J

    Weathershield keeps blistering and coming off every year ?

    Hi guys, would appreciate advice please. as you can see, my exterior wall keeps blistering and have to scrape it off every year. always used deluxe weathersield. usually late on when weather goes colder. wall is circa 16 years old. rest of house ok, just this new part ? any advice welcome...
  6. J

    Type of trv

    Thanks Ian , much appreciated . Never thought of that.
  7. J

    Type of trv

    Cheers Ian. On the Trv , the fitting on the pipe is not a standard compression, 15 mil, so, presume will have to cut the pipe below it and use a new one, if there is enough pipe to pull up from below floor ? Cannot just change the body of a new one ? Got three like that leaking ! When closed...
  8. J

    Type of trv

    Hi guys, can anyone tell me what type of Trv this is. The fitting on inlet isn’t coned, it’s Leaking on pin when closed. Lockshield on other side same, but should be straight swap? Is it 15 MM to 1/2 inch ? Only ones I seem to be find ! Looks like 15 mil to 20 mil ? Like using imperial still ...
  9. J

    Flushing single rad with hose com

    Yes, still nothing but a trickle coming out ! Gobsmacked. Assumed pipe was completely blocked and needed replacing, hence putting rad back on, not expecting it to work at all until I changed it . That’s why I cannot fathom out why it is getting hot now ? The trickle that was coming out wouldn’t...
  10. J

    Flushing single rad with hose com

    I used a bit of copper pipe ,5inches, approx, with olive and nut from trv, fixed that to Trv, then hose onto pipe with jubilee clip. Trv open, then tap on full, 5 bar approx ! Thought if there was a blockage, it would blast it into circ, about 6 feet , and out the drain tap. Now came out, and...
  11. J

    Flushing single rad with hose com

    Hi guys, bit of an update. Appreciate all the advice given, thanks. Took rad off, flushed it with hose, in garde, as expected, clean, Tested lockshied valve, good flow, let it run a while in bucket. Tried trv side. Just a trickle through it, got worse as I tried to clear it, even scrawled...
  12. J

    Flushing single rad with hose com

    Thanks JP, much appreciated. Tried 2.5 and 2.4 , no hits? The rad s were in when I bought the house 27 years ago, only singles. Could be stelrad, not sure? Try to upload a pic, not too good at it! I agree if it,s blocked it is bottom and channel, the water at the TRV is red hot,but not going in...
  13. J

    Flushing single rad with hose com

    Hi guys, appreciate bit of advice please.. One old rad , of three, old ones, has given me problems for couple of years. Warm top, cool bottom. 13 Rads on system Tried everything except removing and doing it with garden hose. History. Last year drained it , removing both pipes at the bottom from...
  14. J

    Viessmann 100 hot water

    Thanks for your reply. No offence meant. Each to their own. Still say engineer should not have started job if he could not finish it. Two weeks is a long time without hot water at 80. Booked V for next tuesday, £327, but reading smallprint, may not cover the original problem, lot of clauses...
  15. J

    Viessmann 100 hot water

    I do know that, I was an engineer, not a fitter. There,s a difference. I couldn’t, phone anyone, my job couldn’t, wait for that, there were no mobiles then, it had to be fixed one way or another, even if I made the part myself . I am old school, retired. I did not walk off the job until it was...
  16. J

    Viessmann 100 hot water

    Update. Rang V this morning , they said flow switch if not igniting.? Got tap showing on front for demand. My engineer”? Rang to say, they told him thermistor, £75. As it was ok before he started, I can only assume he has damaged It when taking exchanger out ? Don,t believe in coincidences , he...
  17. J

    Viessmann 100 hot water

    Cheers, will ring them at 9 am., see what my guy says, take it from ther.
  18. J

    Viessmann 100 hot water

    Hi lightening, thanks for reply. Engineer actually said that just before leaving, that,s why I thought he didn’t,t want to continue. Would been better just putting new one on in first place if not using chems, But why no ignition now on hw, ok on ch still? I said chemicals, his reply was, time ...
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