How are these hooked up to the main consumer unit. Is it a possible DIY job.
http://cgi.ebay.co.uk/Shower-unit-c...hash=item360067203796&_trksid=p3286.m14.l1318
http://cgi.ebay.co.uk/Shower-unit-c...hash=item360067203796&_trksid=p3286.m14.l1318
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