On 26 Nov, 15:50, "Dave Liquorice"
wrote:
On Thu, 26 Nov 2009 15:30:52 -0000, TheScullster wrote:
Can't see the tanks getting replaced, so it looks like the dustbin lid
and For-Sale-Sign solutions get my vote!

With "other solutions" think about where the condensation will run
to. A dust bin lid would need to ne used upside down other wise the
condensation will run down to the edge of the tank and by capilary
action down the outside of the tank. Similary a flat sheet but not
quite as bad.

I'm wondering is some poly sheet, heavier than bin liner but not as
heavy as floor DPC, would be better. With a small weight in the
middle to ensure that "down" is inside the tank, Fixed by binding
with string (if there is a suitable lip on the tank top edge or
possibly gaffer taped.


That's exactly what I've done - heavy duty polythene sheet from
Wickes, ring of duct tape round the tank 6 inches below the top. No
need to weight it, the sheet has enough sag in it to create a dip in
the centre.

if the CH header tank is getting warm maybe think about turning the
pump speed down a click.