Bubbles can remain visible after some liquid has moved, while a rising liquid level indicates another concern. The product and fixture involved help interpretation.
What the observation means
Appearance alone should not establish that pumping succeeded. Do not stir or reach into contaminated water to judge the level.
A useful next step
Stop using the system if actual water is not clearing and report both observations. Keep the cleaning or bathing product details available. Avoid adding another chemical or large amounts of hot water to make the foam disappear.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.