Observe the ordinary water flow
Mention visible trickling into the bowl or a cistern that does not stop filling. There is no need to open the wastewater unit to investigate incoming flow.
Choose the right enquiry
An engineer can assess whether the issue begins at the fixture or the pump. Keeping that distinction can avoid an unnecessary appliance replacement enquiry and direct suitable work to the actual source.
A useful distinction
A fixture-side problem can continue after the pump is repaired if incoming water is not addressed. Explaining both observations helps keep the proposed work directed to the source rather than only the repeated noise.