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  1. C

    Central heating overflow

    Thanks for the thoughts. Looks like a new hot water tank then. They seem to be circa £100 + vat - sound about right? Fitting looks fairly easy - drain - unscrew connecting pipes - screw in new - fill. Is that about right - or is it normally a horrendous job?
  2. C

    Central heating overflow

    Thanks for the info. It looks like thats the problem then. If I connect a cold tap (mains pressure) via a hose to a hot tap (near the tank) turn them both on - then the cold should 'squirt' out of the hole in the coil - thus giving a noticable and thus confirmatory diagnoses of the problem -...
  3. C

    Central heating overflow

    Thanks for the tips. I have not noticed any water disclouration via the hot taps etc - but then again if the central heating circuit is leaking in to the hot water circuit I suppose the small amounts may not notice - also the water in the rads etc would be replaced eventualy with clear fresh...
  4. C

    Central heating overflow

    Hi, The overflow from my central heating/hotwater expansion tanks constantly 'dribbles' - the overflow just keeps up with the excess water level in the tank! The ballvalve and the expansion pipe are all OK - no water/steam from the pipe and the ballvalve is not leaking/dripping also it is set...
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