To help me explain, I am a plumber and this specific pump helps me tremendously, but in specific tasks such as unclogging bathtubs-showers, bathroom sinks... it is not suitable for kitchen and floor drain traps.

Initially, a bit cumbersome tool as it required a lot of power and effort to detach the handle. It does not have detailed instructions for non-professionals, only 2 sentences in the package for the use of its attachments (I had to resort to a video on the internet). Very effective in unclogging the toilet, but I can't say the same for the sink.