"basil" wrote in message
...
On 25 Feb 2005 06:04:22 -0800, "Vaci" wrote:

I live in a block of flats where cold water is gravity fed from a
large, shared water tank on the roof (about 20 ft above). I want to
install a pump to provide a high-pressure shower, but all installation
guides I've read insist on an independent cold feed from the tank to
the pump, which I can't provide.

Can I still install such a pump if I tee off the hot and cold supplies,
and put check valves on the non-pumped branches to prevent the pump
from sucking water or air back from the taps?

Vaci
Have you got room to fit a header tank in your flat then run your hot
water from that?

It is called a "break tank" and in this case not a bright idea. The best is
a pump with a suitable non-return valve. The supply pipe is more than man
enough if it only supplies 2 or 3 flats.




_________________________________________
Usenet Zone Free Binaries Usenet Server
More than 120,000 groups
Unlimited download
http://www.usenetzone.com to open account