The five towns with the worst tap waters in Andalucia are found in Almeria, Malaga and Granada, experts have claimed.
It comes after water treatment specialists at D’Vida Water analysed samples across the region.
They looked at the dry residue in the tap water, which is the total amount of dissolved salts and minerals in one litre of water after it has completely evaporated.
This demonstrates the hardness of the water, which affects both its taste and its usability.
For reference, very low mineral content water has a dry residue of less than 50 milligrams per litre, while low mineral content water reaches up to 500 milligrams per litre.
High mineral content water, on the other hand, exceeds 500 milligrams per litre.
For people with certain illnesses or colic, doctors often prescribe drinking water with very low mineral content, as it requires less filtration.
In a video shared on Instagram, D’Vida said the worst tap water in Andalucia is found is Balanegra, in Almeria, which has 1,800 milligrams per litre of mineral content.
In second place is Alora, a municipality in Malaga, which has a mineral content of 1,090 milligrams per litre.
The third position is also held by a town in Malaga, specifically Cartama and Estacion de Cartama, with 890 milligrams per litre of mineral content.
The other ‘unhealthy’ tap waters are found in El Ejido, Almeria, with 670 milligrams per litre of solid residue, followed by Motril, on the Granada coast, with 520 milligrams.
‘In all these areas, people don’t even use tap water for cooking,’ said D’Vida Water.
Commenting on the video, a resident of Estacion de Cartama said: ‘I can vouch for the fact that the water is disgusting.’
‘It’s not even good for cleaning,’ said another, ‘it’s terrible.’
Another added: ‘In Cartama, I don’t even give my dog tap water. Everything is bottled water. Even the plants are suffering terribly.’
