"Robert Inder" wrote in message
...

OK, so you lot of put me off "plan A", which was a
tidied-out-of-the-way electric shower.

SO I'm looking at Plan B, using water from the hot tank.

But I've got a problem. (Well, you knew that, didn't you, or I
wouldn't be posting he-)

The room we're turning into a bathroom has a hot water feed from the
hot tank, with about a 3 metre head.

BUT it only has mains pressure cold. It will be very awkward to get a
tank cold feed down into the basement. There is a tiled kitchen floor
in the way.

All the mixer showers I have looked at expect roughly even
pressure on hot and cold. So it looks like we might be forced back to
an electric, because it will run of mains alone.

Is there anything else I can do?

Is there any kind of pressure-reducing device I could use? And don't say
"half closed stop cock"...

Or would it work to use a plain mixer shower, but with some kind of
stand-alone pump on the hot side only?

Thoughts? Suggestions?

Robert.

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Single impeller pump on the hot water, so you end up with a power shower,
assuming you have good mains pressure?

Note, you MUST NOT pump the mains feed....

You should also install a double check valve on the cold, so you pump cant
back-feed the mains supply.

Not sure if this solution is allowed, but with a double check valve, I cant
see why not...

Sparks...