What Does Flexible Stick Mean?
A flexible stick is used to push an inflatable plug into place in pipes to block the flow of material. Whether a trenchless crew is plugging a pipe that has been disconnected in the repair process, or the crew is plugging laterals to isolate the main, the plug is first inserted into the disconnected pipe or the lateral, then inflated. This leaves the lateral in which the plug is inserted isolated from the main or, in the case of a disconnected pipe, it effectively “caps” the end disconnected.
A flexible stick is also known as a drain stick.