The use of water in the public dispensers is nowadays free.

The users usually misuse them wasting the water.

After an study made by TOT COMERCIAL SA during July 2006 in the Mediterranean beaches (Tarragona · Spain), it was detected that only a 34% of water was really used for its end. The rest of water was running even when the user was not under the shower, either because of extremely long uses or, in many cases, because of children who were playing with it. A kid playing with the shower wastes 500 litres in 20 minutes.

Conclusion of preliminary studies:

• When the water has not an economical value, there is an indiscriminate use.
• The measure adopted to decrease and control the consumption is a controller installed in every dispenser. It works with a prepaid card. This cost will be symbolic (depends on each institution in charge of these dispensers). But the fact to pay avoids not misusing them.

This system is designed for:

• avoiding the water runs through the shower when the user is not under it (we eliminate about 19% of waste).
• avoiding the 47% of misuse.
• reducing the indiscriminate use of the showers. We estimate that adding an economical value to the water, although it is symbolic (0.5 or 0.10 €xshower), the normal use will be reduced in 50%; so, this AQÜIM system will reduce the water consumption about 83%.

Controller of the water consumption suitable, mainly, for public water dispensers like the showers and the footpaths of the beaches.

Use restriction with proximity "prepaid" cards.

Saving of the 83% of water in the public showers.

Recently the communication media has bombarded us with the need of saving water. This is the main aim of this project.

The project is developed using the electronics protected against the humidity, the high temperatures and the saline environments.

The system is self-financed with the income made with the prepaid card recharging of the users.

It also replies to the need of giving answers economically sustainable in the actions for the environmental investments.