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C/u will be in the house by the incomming and main c/u. It will be about 4 mtrs to Spa and about the same to the Sauna. The 6mm to the Sauna is already run. All internal. The swa has to be run as does the build of the internal sauna. Thought about local isolation. Understand that this...

OK I'm going 10mm SWA to the Spa with a second c/u which will take the Spa and the Sauna, unless anyone says otherwise.

Proposing to lay it underground in a conduit and connect direct to the Spa. I could use SWA to avoid using a conduit. I assume 10mm SWA is freely available. Any thoughts if a 2nd c/u is the better way forward to avoid a heavy load going through the existing c/u. I already have a DP...

I am installing a Garden Spa. Need a 35 amp supply (10mm Twin and Earth). My existing c/u is 100 amp split load with 25mm tails. The RCD is 63 amp 30ma trip. I already have sauna (6kw), cooker and immersion heater on the RCD. The Hot Tub will overload this. Only have domestic lighting and...