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...
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....
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...
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...
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...