Powering a shower pump or digital shower/ loft radial 30A circuit

Silent Ice · 2024-06-19T08:03:34+00:00

First I'd say I'm unlikely to be doing this myself but you never know and I'd like to know what instructions to give to the bathroom fitter.We're considering a shower pump or digital shower. I'd like to know if the existing 6mm T&E and 30A MCB for a now defunct electric shower are suitable to terminate into a socket, as I understand both types of pump are usually supplied with a plug. There's no scope to downgrade the MCB at the consumer unit unless we have the whole thing upgraded. Is it any different from a standard socket circuit except it's not a ring? Would that approach let me create a radial circuit with additional sockets so I have power in the loft if needed and if I ever need to free a PoE port I can power the upstairs wifi mesh from a plug instead.The other approach would be to take power from the lighting circuit, I could easily take from the first fitting (which already has a spur feeding the loft light so maybe not) or the last fitting.Or there is the possibility to take the power from the airing cupboard supplying the CH/HW controller (may be a no no) or with some disruption a spur from the adjacent bedroom socket (not favoured because the cable would run alongside the Ethernet cables).Optional Background:The existing shower is an electric shower fed off the mains and powered by a 6mm cable that goes via the loft. The shower gave up and prompted the current effort to have the bathroom refitted. The first fitter who came suggested us to get a shower pump and we were going with that idea until we saw digital showers exist - considering we need new plumbing done for either, it's not much more to have that than buy a brass centrifugal pump (we'd need universal) plus a concealed shower mixer anyway. The main advantage being the pump, being switched on by the 'on' button hence not relying on flow sensors and the like can go in the loft according to the instructions (as long as the base is not higher than the base of the cold water cistern) but if not it'll...

Jun 19, 2024 Last reply: 2 years ago 20 Replies

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Silent Ice 2 years ago

Thanks for the idea, think this will be a good solution. Although not the cheapest, I've found a socket unit that will (allegedly) take 3x

6mm. Saves me trying to find a regular socket that will work. The shower (pump/controller) can be hard wired to the cooker side and leaves me with a free socket, and that can be expanded in future if needed.

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