I'd appreciate any info, links, warnings, whatever concerning selecting and installing a power shower - basically adding a pump to a low pressure gravity shower. I understand that in some situations it may be necessary to install new cold and hot tanks, the shower needs its own hot and cold feeds and the water authority has to be informed, but I am not clear how and when these situations arise and what the WA has to do with it.
Not usually
the shower needs its own hot and cold feeds
Yes. The hot *should* come from an Essex or Surrey flange which prevents outgassing air from the water enterning the pump circuit (but that's really to give the pump a longer life). The (new) cold feed from the loft tank should be below the outlet for the hot water (if the tank empties, a person showering then gets frozen rather than scalded!).
I don't know anyone who informed the WA concerning the installation of a pumped shower - I certainly didn't!
A Google search in uk.d-i-y will unearth many posts (a couple from me) on all of this.
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