On Sun, 27 Aug 2006 10:59:44 +0100, David Hansen
wrote:

On Sun, 27 Aug 2006 09:58:35 +0100 someone who may be Bill Haines
wrote this:-

There's an obsolete 15mm outlet that used to supply a shower unit. For
some reason, maybe to maximise the pressure,

The reason is safety of people using the shower.

the hole for this outlet
is very close to the bottom edge of the tank, leaving little room for
any flanged fittings that might be used to seal the hole.

How little room? Is the problem that the flange would strike the
bottom of the tank, or that the radius of the tank wall at the
corner would prevent the flange fitting flush to the wall?

A little of both I think. I got the proper fitting and cut some off
one edge to compensate. Now it's sealed. Thanks to both you and A G
for the revelation about the reason for the location of the outlet and
other useful tips.
--
Bill Haines