In an earlier contribution to this discussion,
Tony Williams wrote:


Below are the quoted requirements from our electric
shower booklet.

" ... a mains water supply with a minimum running
pressure of 1 bar (14.5psi) at a minimum flow
rate of 8 litres per minute and a maximum static
pressure of 10 bar (145 psi)."

" ..... can be taken from a cold water storage cistern
provided there is a minimum head of 30m above the
sprayhead. It must be an independant supply to the
shower only."

That second possibility is a little unrealistic for
most houses.

It's cobblers, anyway! 1 bar requires a head of about 30 feet - *not* 30
metres!
--
Cheers,
Set Square
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