i have a glow worm combi and the pressure gauge keeps going to 0.2 bar. The
plumber I spoke to says that the boiler I have should have a pressure of
between 1 and 2 bar. I used the refill tap to raise the pressure but after
a few minutes this goes back to 0.2-0.3bar. I then noticed outside by a
drain pipe hot water was coming out so I thought this is where the hot water
is going. How do I stop it from draining and maintain the pressure?
Thanks.

--
ian
to e-mail me,
pls. amend the obvious.