Here you will find answers to the most common questions. If you still have questions, please contact us.
The appliance measures 21.8 cm x 13 cm x 10.6 cm.
To install the appliance on top of the shut-off valves under your washbasin, we recommend free space of at least 19 cm between the shut-off valves and the underside of the washbasin. There should also be free space of at least 14 cm between the back wall (where the shut-off valves are located) and the washbasin drain pipe. If the appliance does not fit under the washbasin it can be installed to one side (vertically or horizontally).
The AquaReturn power cable is 2 metres long.
Since the appliance is designed to work in a wet location, for safety reasons we recommend using an earthed extension cable.
The appliance is specifically designed to be installed under a washbasin or sink, where it will ensure maximum water and energy savings. It can be installed by the boiler or water heater but the hot water leaving the boiler will pass through pipes that are still cold, which means that the savings are less than if the appliance is installed under a washbasin or sink.
AquaReturn is designed to save water in homes and is easily installed under the washbasin in your bathroom. Since it is attached directly to the washbasin flexible connectors and is plugged into an electrical socket, the type of boiler or water heater is not important. So the simple answer is no, your boiler or water heater does not need to meet any specific requirements.
The appliance is not designed to work with communal boilers (for regulatory reasons) and so can only be installed in homes that have their own boilers or water heaters.
Ideally, the AquaReturn appliance should be installed in the bathroom where hot water is used most frequently, above all in homes with several floors or where bathrooms are far apart. The appliance can, however, be installed in the bathroom furthest from the boiler. When the device beeps, there will be hot water in all the other bathrooms in the same circuit.
No, installing a single appliance under the washbasin will serve for all the hot-water taps in the bathroom.
With the current design of the device that is not possible without modifying the installation.
If the hoses of the tap do not go to a cutting key, but go directly to the wall, it can be placed under the sink following the instructions that we indicate below:
AquaReturn establece un circuito cerrado en el que el agua que circula por la tubería del agua caliente, si su temperatura es inferior a 35ºC, es desviada, a través de una electroválvula, hacia una bomba que la inyecta en la tubería de agua fría, para que vuelva a entrar en la caldera, por lo que el agua está recirculando hasta que alcanza la temperatura de consumo. De esta manera, el dispositivo evita que el agua salga por el grifo mientras no esté caliente, evitando el desperdicio de litros y litros de agua y mucho gas o electricidad.
The appliance consumes practically no electricity when at rest (0.6 W/h, less than €1 per year). In the seconds or minutes when water is recirculating, consumption is 124 W/h. This represents an electricity cost of just 6.8 eurocents per 1,000 litres of water saved.
AquaReturn is a high-quality appliance which should last for at least 10 years. In accelerated ageing tests its useful life was 25 years.
Legionella bacteria only develop in systems that continuously recirculate water over several days, in contact with air and at ideal bacteria breeding temperatures (more typical of hospital, hotel and gymnasium installations).
AquaReturn recirculates warm or hot water for just a few minutes at a time. As soon as the temperature reaches 35.5ºC, the water is no longer pumped back to the cold-water pipe. Any hot water remaining in the pipes rapidly cools down to room temperature again. The risk of Legionella bacteria forming in a cold-water pipe with AquaReturn is exactly the same as in a hot-water pipe without AquaReturn, i.e., zero.
In fact, precisely because there is no risk, European and Spanish regulations exempt domestic systems like AquaReturn, water return systems, etc. from Legionella controls. No cases have been reported of Legionella caused by a domestic system.
El ahorro final depende de varios factores, como son el uso diario de agua caliente en el hogar (si es sólo para la ducha, si se friegan los platos a mano, etc.), el número de personas que conviven, el tipo de vivienda (piso, unifamiliar o vivienda aislada) y también de la zona en la que está ubicada la vivienda. Ya que el agua de acometida en un pueblo de Guadalajara está a menor temperatura que la de Murcia, por ejemplo. Y esto incidirá en la cantidad de agua que se desperdicia desde que se abre el grifo hasta que sale caliente.
Pero dicho esto, los cálculos realizados con el uso de AquaReturn, teniendo en cuenta todas estas variables, dan como resultado un ahorro medio de 28 litros de agua por persona al día. Es decir, 10.000 litros de ahorro por persona al año.
In those homes that have a solar collector to heat the water, AquaReturn is an additional advantage when it comes to save water and thermal energy. In fact, in the long distances in the route to the collector and back, lot of time is lost and therefore water too, until it arrives warm.
The pump that takes AquaReturn, is used only to overcome the losses of load (rubbing) inside the pipes, on the way back to the boiler.
Raising the water, does not suppose a great overexertion, since the same volume of water, that rises towards the collector, is compensated with the volume of water that goes down from it towards the heater. The pump only has to overcome the "effort" to move the water inside the pipes and the collector. Logically, the longer the pipes and the greater the number of collectors, the greater the load loss, but not the effort of raising it, since lifting / lowering acts as "communicating vessels". The water will take longer to travel the circuit, the greater the distance, but in this time water will not be lost. In this regard, we recommend, if there is a flow control valve, that it be opened to the maximum to avoid "brakes" when the water passes.
For the same reason, Aquareturn is valid to be installed in 4-story bungalows...
This product retails for €297 including VAT and delivery. This price applies to mainland Spain and the Balearic Islands. For the Canary Islands and Ceuta and Melilla, you have to send an email to firstname.lastname@example.org.
AquaReturn is on sale from the official website and from participating establishments, authorised distributors and our network of participating retailers.
AquaReturn is available for sale in Spain and abroad. However, please note that delivery is only free within Spain and that deliveries abroad will carry an additional delivery charge. Note also that the current appliance can only be used in countries whose voltage is 220V-240V/50Hz. A new model suitable for other voltages will shortly be launched onto the market.
If you are interested in becoming an AquaReturn distributor, click on the distributors’ tab on this page and send us an email with your details. We will respond directly. You can also telephone us at (+34) 965 633 353.
There is a 15-day trial period from the date of purchase. If you are not completely satisfied with the product you can return it within this period free of charge (using MRW delivery services) and we will issue a refund. Simply send an email to our customer services department indicating the reason you wish to return the appliance.