We've been told we need to have a powerflush of our radiators. We've used a young guy just to connect a gas cooker and he says he offers a thorough service using top of the range equipment from leading manufacturer - Kamco, who have trained him inhouse as part of the purchase package of their equipment.Has anyone heard of Kamco? I'm trying to find out how much experience he has of doing a power flush for clients or if his experience is limited to inhouse training. If it is limited to the latter do you think that matters? Thanks very much.