When should you use a tee fitting in pipe repairs?

Using a tee fitting in pipe repairs is essential when adding a branch line in a horizontal pipe run. The design of a tee fitting allows for a smooth transition of flow between the main line and the branch line. This is particularly important for maintaining the hydraulic efficiency of the system and ensuring that the flow is not obstructed or poorly directed.

In horizontal runs, a tee fitting facilitates the extension of the pipeline without creating dead spots or significant turbulence that could lead to clogs or reduced flow. It provides a secure, effective way to connect new piping to an existing line while accommodating the angle of the flow.

In other scenarios, such as vertical applications or when simply repairing a broken pipe, a tee fitting might not be necessary or appropriate. Similarly, it is not required in every pipe connection scenario, as some connections may utilize different fittings tailored to specific applications. The choice of fitting should always be guided by the specific requirements of the plumbing system and the intended purpose of the new line being introduced.