Currently, water consumption is on the agenda of most organizations around the world. Beyond the environmental benefits for a better use of natural resources there is also a financial motivation to continuously reduce operation costs. This study reports a cost-effective solution using a Wireless Sensor Network (WSN) for measuring the consumption of different types of save water taps, in a real situation of intense use. It is also pointed out that WSNs are networks suitable for data collection where a wired infrastructure for data transmission does not exist or it is unfeasible to install one. Which was the case of this research, that regarded the liquid consumption along with the technical and economic benefits of save water taps. On this proposed setup network installation should only be sustained during the period of this investigation. Since once it was finished, the entire experimental arrangement was scrapped as the structure would have no more utility because the data was already collected and analised and therefore, was reprocicable.