Mechanical rod systems aren’t 100% effective and this can be the case if a blockage is either quite far round a piping system or is quite compacted. If could also be that access is an issue or there are several bends.
Jetting is incredibly effective, and we use a range of different powered jets to match the specific blockage circumstances. After an inspection and assessment, we decide whether to use a hot water jetter, an ultra-high pressure jetter or something else.
Hydro jetting is also useful for sewer system maintenance, as it clears debris from the area.