Recent content by mghants

  1. M

    refilling a sealed system - How?

    slugbabydotcom...... I finally got back to look at his problem (been away so wife had cold house whilw I was in cosy hotel :-) ) I decided to un-solder the joint where the bend was instead of cutting the pipe. I was as sceptical as you but - BINGO!!!!!!!!!! It was blocked right on that...
  2. M

    refilling a sealed system - How?

    I meant that the stop valve was open during the time I drew the bath. I guess that makes sense for pressure to drop as the cylinder is refilling. If I close the stop valve and open then bleed valve (behind the stop valve in the pic) then water runs until the pressure drops to 0....
  3. M

    refilling a sealed system - How?

    Hi Paul, It is a current picture. I took it right after I was asked for a pic. Yep - valves are open. Just in case I'd missed something - I took the pump off to double check the valves were open. Whilst I had the pump off, I opened the stop valve - expansion tank pressurised to almost...
  4. M

    refilling a sealed system - How?

    That's what I thought I needed to do but not even puff of air comes out. I have even tried undoing pump expecting a torrent of water - nothing..... Doesn't sffect the pressure either.... If I lift the pressure valve on the top of the tank - sure enough,water flows and down the overflow it...
  5. M

    refilling a sealed system - How?

    I had to replace the circulation pump on my central heating so I drained the system (no isolation valves installed either side of the pump). I have a sealed system Boiler is a Potterton PrimaF In the airing cupboard I have an expansion tank with a blue hose connected to the mains wtaer...
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