This great pipe network has two branches: the Eastern branch, which goes from the Concepción reservoir, in Istán, to Torremolinos; and the Western branch, , which goes from the same place to Manilva. It is an enormous network that is supported thanks to the work of the company's technicians and operatives.

These long pipes are of sizes ranging from the 30 centimetres in diameter of the smallest to the metre and a half of the largest, and they are made of various materials (sheet metal, concrete, fibre cement, etc).
In addition, ACOSOL is responsible for cleaning and conserving 60 tanks and 50 pumping stations.
The tanks are the places where water is stored to be later distributed, while the pumping stations serve to propel the water from one point to another as, although this movement of water sometimes happens naturally (thanks to the force of gravity and the weight of the water itself), at other times it is necessary to have recourse to the force of a pump engine to overcome obstacles like hills or mountains.

Before the water reaches the consumer, ACOSOL has taken the trouble to carry out a series of very important tasks, such as making this water fit for drinking, to a high level, but it needs to be treated in order to eliminate anything that might be dangerous to health, in accordance with regulations laid down by the region's municipalities. As well as this prior treatment, which is carried out in what is known by the initials ETAP - Estación de Tratamiento de Agua Potable (Drinking Water Treatment Station), which is located next to the Concepción reservoir, sampling and analysis is continued throughout all the months of the year on different days and in different places. So, in a normal year, the ACOSOL laboratory technicians can carry out about 40,000 analyses of water, or between three and four thousand a month. In this way, whoever consumes water can have complete peace of mind regarding the safety which this good work assures. This work has led the SAS - Servicio Andaluz de Salud (Andalucian Health Service), part of the Andalucian Government - to classify the water supplied by ACOSOL as "exceptional" and the company itself as "one of the most serious-minded and sensitive", placing it at the forefront in terms of "technical-scientific rigour and guarantees of quality".

Outstanding among the alternative resources of the Association of Municipalities of the Western Costa del Sol (Mancomunidad de Municipios de la Costa del Sol Occidental) is the Costa del Sol Desalination Plant, with production capacity of 56,000 cubic metres a day, or 20 cubic hectometres (20,000 million litres of water) annually.