"diy jane" wrote in message
oups.com...
After returning from our holiday my children informed
me that one of the loft overflow pipes had been dripping whilst we
were away. I decided to have a look around tonight when I put the
cases away i was suprised to find the water
in the expansion tank was hot! i have been told it might be a leaking
coil in the cylinder tank. i have bailed it out a few time and the
water looks a bit brown near the bottom of the tank .
im a bit short of money at the moment has anyone any ideas what it
could be .what would happen if i left it dripping
thanks jane

How old is the cylinder? I had exactly the same prob. with mine which was 35
yrs. old. Cost around £250 to replace and fit.
Leaving it like this will increase your fuel bills and make a wet mess under
the overflow.