The Freeze Master is easy to use. Just connect the purpose designed freeze heads to the pipework, upstream and down-stream of the area you want to work on. In as little as 5 minutes, two solid ice plugs can be formed allowing you to carry out your repair quickly and efficiently. It will freeze copper, iron, lead or plastic pipes. It is safe to use. You can leave the machine unattended, and 
as long as it is connected to the mains, the freeze will continue indefinitely. Unlike a gas freezing method, where a cylinder may run out, there is no danger of ice melting and flooding.