A bathroom can contain a macerator, shower pump, extractor or other equipment. Their sounds and service scopes differ.
What the observation means
A pump near the toilet is not automatically the source of every noise. Observe from a safe normal position without opening covers or operating extra fixtures.
A useful next step
Describe where the sound appears and which ordinary action preceded it. If identification remains uncertain, say so. Do not label an extractor or water-pressure pump as a macerator merely because the names sound similar; the correct equipment determines the next assessment.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.