Define what is connected
A meaningful test begins with a clear boundary. Branches, valves and connected equipment affect which part of the installation the result describes.
Use available isolation
Where suitable controls exist, individual sections can be assessed separately. The installation determines what is possible without additional work.
Distinguish loss from location
A test may support a loss within a section without identifying the exact position. Further tracing can still be needed.
Explore the relevant service
General information for planning an investigation. The property, instruction and findings determine the appropriate work.