I think there is an air gap between the cistern and the tank not sure though.

I will be completely redoing the bathroom so the electrics can be put in when I do that with an appropriate circuit breaker on the power switch. I'm currently fitting out what was just the loo so it will have a bath in it the other bathroom that will have the fish tank loo will not have a bath in it just a shower cubicle so I'm not to worried about the water issue however I will take the necessary precautions to meet current building regs. I'm happy botch jobbing most things providing they look good but electrics and gas I will not muck about with.

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Alan

Thweeerp!