Why does tap water taste or smell weird sometimes?

The short answer

Safe but mineral-heavy. Morocco's tap water comes from Atlas limestone aquifers — high in calcium and magnesium. In older buildings, decades-old pipes and rooftop storage tanks add their own character.

The mineral profile changes seasonally — heavier after rains wash more calcium through the aquifer, lighter in dry months. Each city has its own water character from different basins and sources.

In older riads, galvanized steel pipes installed decades ago leach trace minerals as they corrode. Rooftop storage tanks can develop sediment if not cleaned regularly.

Sidi Ali and Sidi Harazem are the local brands — both drawn from Atlas springs, about 5 dirhams for a litre and a half. Plenty of Moroccans drink the tap water daily.