I have a bought a Bestway 'Lay-Z-Spa', an amazing bit of kit for the money (see Lay-Z-Spa website for more info), bought this in the UK but these are available in France. The instructions state it must be plugged into a RCD to ensure electrical safety. The RCD used must have a residual operating current not exceeding 30mA. I am aware that I can buy these in the UK, can you buy plug-in RCD's here in France? It also states that it must be plugged into a properly grounded socket, should be simple but I am aware that some but not all of the sockets in the property have no earth wire connected. In the UK I could use a small 'plug-in' earth tester that verified the earth was operational and satisfactory - any advice re this? The house will be rewired in 2008 by a qualified French electrician, I don't know who did the existing wiring - it all works OK but I need to be extra safe with this kit. John