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  1. E

    How to isolate the boiler and drain it

    Hi, Could anyone advise how I can isolate a valliant combi boiler from the rest of the central heating system so that I do not have to drain the whole system down please. I have a plate to plate heat exchanger that is slightly leaking and want to just give it a check. Image below of my setup...
  2. E

    Cleaning Copper Pipe

    Hi all, I create things using copper pipe such as lamps etc. I would like to know if someone has a very simple way of removing the tarnish that is visible after soldering copper pipe? The best way I have found is wire wool, however, I'm not a huge fan of the stuff and I tend to go through...
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