loosing presure to 0bar about every 2 days with no ovious signs of leaks

gary, November 2009

there is definitely a leak..possibly from discharge valve caused by expansion tank air charge lost....

this can be rectified by re inflating expansion tank vessel to 1 bar and reset / replacing discharge valve....

this work should be carried out by competent persons

darren ( gascare ) s-o-t, November 2009