Neil wrote:
Hi,

I went to bed last night, to the sound of dripping and found out it
was from just alongside my loft hatch - set out a drip-catcher and
went to bed. This afternoon I took a closer look. It seems that the
wet patch (or the only one I can see) is on one bottom corner, a
corner where the loft hatch might rub on the tank and where it is
definitely dripping from.
I've taken some pictures:
http://www.kepiernet.f2s.com/loft/subalbum_1.html

Pictures 6,7 are the best of what seems to be the 'hole'.

Any idea whether this looks rodent-caused? and perhaps more
importantly whether the tank should be replaced in a situation like
this, or whether I could just get some gungy stuff to fill the hole?
(maybe even while full of water?)

Friends/family are shouting at me to get a plumber out, and while I
can't see the rest of the loft very well, this seems to be the only
noticeable problem.

Thoughts?

Rattus Norvegicus trying to get a drink, I assume it has a lid? only proper
solution is to replace tank...and of course put down poison, which should be
refreshed every day for a week, or until it stops being taken.
After that you'll need to put poison down every six months to keep them
away, I usually use the blue square wax blocks, they are cheaply available
from agricultural suppliers