It depends on your priorities. Most - if not all - of the 'designer' mixers are only available for high pressure. And given how much they cost, a pump isn't that much of an extravagance especially if DIYing.
Of course if all you want is taps which work - no problem getting low pressure types.
Anyone?
Why not just move your existing pump to the HW cylinder outlet?
Tim
It pumps both hot and cold to the shower.
From my daughter's recent saga with plumber and shower pump - it should be fitted as near as possible to the tank as it is better at pushing than pulling. (And there is of course a cold water supply at that location...)
However you are better off not using that cold supply, and instead taking a separate one from the cold tank for the purpose. (arranged so that when you run out of cold water, the hot (i.e. the cylinder feed) stops first.
Yes, and the Country-Farmhouse French ones are the worst for that.
I ended up fitting a pressure regulator to the kitchen cold (house was fed from a borehole pump with pressure reservoir at around 3 bar) to match it to the hot cylinder pressure, which was around 0.5 bar. Otherwise, the internal passage design of the fancy French Country Farmhouse mixer fed the mains cold back up to the hot tank. The types of mixer where the internal passageways don't mix in the body or spout aren't affected by this, but when customers buy them, they don't know that.
Think water bylaws in the UK require a design where the two can't mix apart from at the end of the spout, to prevent siphoning. In other words to prevent stored water entering the mains circuit should that fail. Or somesuch. But I'll bet it's ignored these days if it still exists.
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