On Sun, 4 Dec 2005 16:20:52 -0000, "NikV"
wrote:

Hi
I've got to gain space in our small bedroom so I want to put the hot water
tank in the loft, how high above the top of the hot water tank should the
water surface of the cold water tank be. Has anybody got any links to sites
with cold water tanks which will fit high up in the ridge - I've googled but
can't find anything.
Any advice welcome - ps can't afford to change from the current open vented
system ATM


Have a look at Polytank

http://www.polytank.co.uk/poltankcoffin.html


You will need to come up with a substantial way to support the weight
of course.

The feed pipe and the vent pipes should both be plumbed in 28mm to
avoid air being sucked down the vent pipe when water is drawn off.

With shallow tanks of this type, it is a good idea to use a Torbeck
valve rather than regular ball valve. The reason is that the level
rises very slowly and a regular valve will trickle for a long time and
may be noisy. The Torbeck shuts off positively when the level is
reached.


--

..andy