Thought I'd try my luck again after good replies to previous query. I sort of think I know what to do on this but I've installed a Salamander pump for my bathroom supply. Made a good job to their (exacting) installation requirements. Now I have to cross bond the pipes to earth them . Is this just a case of wiring (for want of a better word) them all together, and where does the earth go to. As ever, any advice will be greatly appreciated.