To do repairs you need to be able to visually zoom out, see the whole system as a whole, from the supply line to the point of delivery. On then can you start zooming in to find the point of breakdown. It takes a different kind to make a good repair engineer.

Any tool is as good as the man who holds it!

Hi everyone, @Dev Raniga is hitting on some key pointers here. To your point, fault finding is of extreme importance. The problem is most of us start in construction. More than often, repetitive work done day after day, focused on one aspect of plumbing only. Perhaps installing pipework only, or only installing boilers. Hopefully get rotated as they progress of course. The point here is, do they really know how the whole system fits together in sequence. This is the part you need to know and understand when you start doing fault finding. Finding out where the loss of pressure and flow happens for instance. It can be anywhere from the supply line up to the point of delivery. It's not in everyone's makeup to be a good maintenance plumber. Some prefer the the repetition work done in construction. I prefer a new challenge every day. For over 35 years, maintenance has never bored me. I wish I knew more about running my own business one day when I started as a plumber, or shall I say paid more attention :)

@Dev Raniga fresh leads?

Callbacks are always 100% loss!