I wonder if anyone can offer some advice please?
I have run a shower from a pump in my airing cupboard for ages without
problem. Recently I changed to a larger head and although still plenty of
water it is more like a heavy rainfall than a power shower. I thought the
pump, which is a duel impeller type and fitted as per instructions, would be
adequate for this new head, but it doesn't appear so. I would like to know
what, if anything, I can do to increase the flow.