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Discuss Calmag magnetic filter blown off in the Central Heating Forum area at

  1. sammathias

    sammathias GSR

    Had a call out earlier, leak through ceiling from boiler. There was a calmag magnetic filter which had blown completely off the threads which you unscrew to access the magnet. Baffling because id have expected it to be split/damaged.. Screwed it back on,topped pressure ran heating upto temperature and everything seems fine..

    Has anyone had similar problem with magnetic filters?
  2. scott_d

    scott_d Plumber GSR

    Other than leaky TF1's not had any problmes
    • Agree Agree x 1
  3. king of pipes

    king of pipes Trusted Plumber GSR

    Same as scott i have only had leaky TF1s now only use Magnaclean cheers kop
    • Agree Agree x 1
  4. jammydodger

    jammydodger GSR

    Probably wasn't on correct if there was no sign of damage. Never used one myself always used Magna.
    • Agree Agree x 1
  5. sammathias

    sammathias GSR

    Yeh ive always used magna. Bloke said its been installed 8 months with no leaks at all. Then it blows off..not very reasuring isit! I did suggest him change it. Strange how the threads where all good.
  6. scott_d

    scott_d Plumber GSR

    Doesn't sound possible to blowoff and bit be damaged
    • Like Like x 1
  7. Ant Parkes

    Ant Parkes Plumber

    Customer been messing with it haha?
  8. Combine

    Combine New Member

    I still get worried when i fill up with the pushfit filter connectors
  9. Harvest Fields

    Harvest Fields Trusted Plumber GSR Top Contributor!!

    The magna pro 2 is easy to fit and the fittings are good
  10. sammathias

    sammathias GSR

    Oh yeah it wasnt a pushfit connecter. It was the actual threaded bowl part!! Doubt the where messing with me and flodding there house for fun haha
  11. D Purdom

    D Purdom New Member

    Hi Just had the same problem at the weekend, had a new combi boiler and a cal mag filter fitted Dec 15th 2016 worked fine until last weekend when a loud bang was heard upstairs and then water ran up to find the lower part of the filter had blown off with water leaking into the bedroom and through the kitchen ceiling
    Plumber who fitted it came out and also could not find anything wrong with the threads but said he would get in touch with supplier, phoned today said a new filter would arrive tomorrow though the bowl that has blown off have now been replaced and made off brass.
    No fault by the plumber and no I did not mess around with the filter but wonder if this has been changed due to a number of filters blowing off
    Not sure where to claim for damage Cal Mag or own insurance
  12. AWheating

    AWheating Trusted Plumber GSR

    You claim is with your plumber if he/ she supplied it. They will have to chase the manufacturer
  13. sammathias

    sammathias GSR

    Looks like i will be sticking with magnaclean from now on!! Never heard of it happening. The plastic must expand a hell of alot!
  14. ehpltd

    ehpltd New Member

    YEP. had two of them BLOW-OFF due toe bad threads on fitting about 4 years ago, stopped using them on systems. I do't know if its a bad design OR manufacture fault, but they cant take the pressure and high temperature, i think they expand a little. Been using spirotech and magna clean since. I kept the calmags and use them on my flushing machine, low pressure, so ok.
  15. London Gas

    London Gas GSR

    I see loads of magnas leaking from valves, more so the old red valves, the other day I changed leaking valves on a newer one, been fitting the Fernox TF1 Omegas lately, 25 year warranty cant really go wrong.