I want to know the easiest and safest way of installing the electrics for an outdoor water feature. I was thinking of drilling a hole through the wall and feeding the wire through the wall and plugging it into the socket inside my house, but i understand the circuit has to be protected by a rcd device? Will it be ok to feed the wire through the wall to the inside and use an rcd plug into the socket then plug the fountain in via the rcd? If not please explain the easiest way of installing the fountain electrics because i am very stupid with DIY and don't understand much, so no complicated answers please. Clearest answer will get best answer. thanks