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Discuss Worcester Highflow 3.5 (sealed system) Question in the Plumbing Forum area at UKPlumbersForums.co.uk.

  1. steve51

    steve51 New Member

    Hello Everyone

    I spent some hours yesterday fitting a new filling loop, including draining the entire system and refilling with added inhibitor. All seemed to go well except right at the end i noticed a tee joint was seeping slightly - a joint i soldered some 7 years ago. It's a joint near the hot water outlet at the top of the boiler. It tees off the upstairs supply and in a really awkward spot.

    Is there any way i can drain off the water pipes without draining the entire CH system? I seem to remember having to wait for an hours last time for an interminable drip to stop before the joint could be soldered - maybe i didn't wait long enough! Anyway, i'd be very grateful for any tips.

    Thanks.
     
  2. ShaunCorbs

    ShaunCorbs S. Mod Trusted Plumber GSR Top Contributor!!

    Hot water circuit ?
     
  3. steve51

    steve51 New Member

    Correct. Sorry it's not quite as clear as it could have been. The CH system seems fine now.
     
  4. ShaunCorbs

    ShaunCorbs S. Mod Trusted Plumber GSR Top Contributor!!

    Should only have to drain the cold mains as the heating and cold mains don't mix
     
  5. steve51

    steve51 New Member

    That's what i would have thought, but can't see how to do it.
     
  6. ShaunCorbs

    ShaunCorbs S. Mod Trusted Plumber GSR Top Contributor!!

    Turn your cold mains stop tap off that should cut off the water to your place
     
  7. steve51

    steve51 New Member

    Yes, of course. But i wanted to drain the water system as well as cut it off, otherwise it drips for hours and i can't solder.
     
  8. ShaunCorbs

    ShaunCorbs S. Mod Trusted Plumber GSR Top Contributor!!

    That's not the heating system water well it shouldn't be

    TBH best get a plumber out
     
  9. steve51

    steve51 New Member

    I think it's the hot water reservoir that's causing the problem albeit water shouldn't run uphill! But i can see no way to drain it so i guess i'll have to wait for the drip to stop, unless someone perhaps has specialist knowledge of this particular boiler?
     
  10. king of pipes

    king of pipes Trusted Plumber GSR Top Contributor!!

    Cut the pipework with a rubble bag under the tee then wet vac the water out we do it all the time you stand no chance with water in there of a successful repair. Cheers kop
     
  11. steve51

    steve51 New Member

    I wish i could get anything under the tee! A towel wrapped around it is about the most that's possible, which is why i hoped there might be some way of draining the boiler. It seems there isn't, but thanks for taking the trouble to reply.
     
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