On 12 May, 08:30, wrote:
Just seen this ad in The Independent about energy and water-saving shower
heads for power showers:
http://www.independentoffers.co.uk/I-DD-7398G-HB-1/Water-and-Energy-S...

or

http://tinyurl.com/266yb2

I have an Aqualisa Quartz power shower which pumps at the rate of about 12
litres/minute, or 18 litres/min on boost setting.

This shower head is claimed to restrict flow to 8 litres/min. However,
surely the shower pump will still be 'trying' to pump at the higher rate,
so wouldn't this shower head place a resistive strain on the pump and lead
to problems? Does anyone have any experience or technical knowledge on
this? Having spent an arm and a leg on this shower, I don't want to risk
damaging it, though I like the idea of saving water.

It will be a flow regulator, which guarantees flow irrespective of
pressure. Pumps are deisgned to cope with a range of flows and
resistances. It should be fine, ring the makers. I recall in the USA a
water company went around and fitted these flow regulators on all
showers for free and saved stand pipes being used. Few people noticed
the difference in the showers and most saved money on bills.