Greywater is the lightly contaminated wastewater from bath, shower, and optionally from hand basins, and washing machines. Greywater should not be confused with blackwater. Blackwater is the wastewater from toilets, kitchen sinks, floor drains, and dishwashers.

Hydraloop devices collect and treat greywater. Some Hydraloop models can also treat condensation water from air conditioning units, tumble dryers, and heat pumps.

Hydraloop reusable water is greywater that has been treated in a Hydraloop device. It is suitable for toilet flushing, washing machines, garden irrigation, topping up swimming pools and cleaning purposes.

Yes. Hydraloop reusable water is clean, clear, and disinfected. The treatment technology has been tested and certified under the NSF-350 protocol and meets the most stringent international standards. Hydraloop reusable water should not be used for drinking, cooking, or personal hygiene. That means: do not use Hydraloop water in your kitchen, shower, bath, hand basin, bidet or hand shower. The reusable water from Hydraloop devices is suitable for toilet flushing, washing machines, garden irrigation, topping up swimming pools and cleaning purposes.

No. A Hydraloop device does not produce potable water. The reusable water from Hydraloop devices is suitable for toilet flushing, washing machines, garden irrigation, topping up swimming pools and cleaning purposes.

The reusable water from a Hydraloop device is suitable for toilet flushing, washing machines, garden irrigation, topping up swimming pools and cleaning purposes.

No, Hydraloop devices do not produce water that is safe to drink. Hydraloop produces reusable water for non-potable use. The reusable water is suitable for toilet flushing, washing machines, garden irrigation, topping up swimming pools and cleaning purposes.

Hydraloop H600 device can treat greywater from hand basins (not from kitchen sinks). Hydraloop Concealed and Hydraloop H300 device cannot treat greywater from hand basins (nor from kitchen sinks).

No, it cannot. The tank size of Hydraloop devices is designed for daily input of shower/bath water. Rainwater can fall in large volumes and the storage capacity of Hydraloop tanks are not designed for these volumes.

• As a backup source for the Hydraloop device instead of tap water. In this case, the rainwater must be pre-treated with filtration and disinfection, since rainwater can come into contact with many different surfaces.
• To transfer surplus reuse water into the rainwater tank.

Yes. At Hydraloop, we believe that rainwater should contribute to the hydrologic cycle. Rainwater should flow into the ground, not into the sewer. Using Hydraloop reusable water both inside and outside, and rainwater only outside, you are reusing water in the most sustainable way. When you own a Hydraloop device, you can choose a rainwater tank for irrigation only, because you are using the treated Hydraloop water for toilet flushing and the washing machine. If you recycle more greywater than you use inside the building, the Hydraloop device can pump the surplus to a rainwater tank. This way, you add Hydraloop reusable water for garden irrigation.

No. The treated water from greywater recycling devices should not be used for personal hygiene purposes. That means: do not use Hydraloop reusable water in your shower, bath, hand basin, bidet or hand shower. The reusable water from Hydraloop devices is suitable for toilet flushing, washing machines, garden irrigation, topping up swimming pools and cleaning purposes.

No, the treated water from a Hydraloop device is non-potable water. You should not use it for preparing food or drinks, or for doing dishes. The reusable water from Hydraloop devices is suitable for toilet flushing, washing machines, garden irrigation, topping up swimming pools and cleaning purposes.

No, you cannot. Hydraloop devices are not designed nor suitable to recycle kitchen greywater. Even after passing a grease trap or grease interceptor, kitchen greywater is too dirty for greywater treatment in a Hydraloop device.

Yes, Hydraloop reusable water is completely safe for growing crops.

Yes. Hydraloop devices can treat greywater with any hardness. If your tap water contains a lot of calcium, we recommend descaling your Hydraloop device every six months with 500 cl (1 pound) of citric acid.

Yes. Hydraloop devices can treat greywater with any hardness. If your tap water contains a lot of calcium, we recommend descaling your Hydraloop device every six months with 500 cl (1 pound) of citric acid.

The treatment takes 5-6 hours. The bulk of greywater is collected during showering, which typically takes place in the morning and evening. With two treatment cycles daily, there is enough treated water for non-potable reuse.

Hydraloop has models with different treatment capacities. Which model is best for you, depends on the size of the building and the amount of people using water in the space. Your Hydraloop installation partner will make a detailed calculation to advise you on the most efficient setup for your project.

No. These two water sources can never cross. Each Hydraloop device has an embedded safe air-gap preventing the backflow of reusable water to the backup water connection.

No. The power requirements of Hydraloop models are different depending on your geographic location. However, the power consumption of your device will not change regardless of the voltage.

H300: 220 kWh per year, 25W on average during treatment.

H600: 460 kWh per year, 53W on average during treatment.

Hydraloop Concealed: 180 kWh per year, 17W on average during treatment.

A Hydraloop Cascade is modular and made to measure, so the power consumption depends on the model and number of devices.

In standby mode and during greywater treatment, Hydraloop devices produce a sound of approximately 44 dB, comparable with the sound of a silent dishwasher. During treatment, you can also hear the sound of the dissolved air flotation (air bubbles) in the device and briefly the sound of the water pump in action.

When too much greywater enters the device, it will automatically discharge the additional water to the wastewater outlet.

Yes, Hydraloop reusable water is completely safe for growing crops.

Yes. Hydraloop devices can treat greywater with any hardness. If your tap water contains a lot of calcium, we recommend descaling your Hydraloop device every six months with 500 cl (1 pound) of citric acid.

Yes. Hydraloop devices can treat greywater with any hardness. If your tap water contains a lot of calcium, we recommend descaling your Hydraloop device every six months with 500 cl (1 pound) of citric acid.

No. A Hydraloop device cannot be installed outside. It needs to be protected against the weather and direct sunlight. The ambient air temperature should be in the range of between 14-35 degrees Celsius or 57-95 degrees Fahrenheit.

A Hydraloop H300 device has a dry weight of 82,5 kg | 181.91 pounds. Filled with water, it has a maximum weight of 383 kg | 844.52 pounds. Before installation, make sure the floor can carry a minimum of 800 kilograms per m2.

A Hydraloop H600 device has a dry weight of 128 kg | 282.24 pounds. Filled with water, it has a maximum weight of 739.5 kg | 1630.60 pounds. Before installation, make sure the floor can carry a minimum of 1,000 kilograms per m2.

A stand alone Hydraloop H300 or H600 device can feed up to four (4) toilets at a maximum distance of 20 meters wide and 12 meters high. Cascade systems can be equipped with an external booster pump to extend the range and number of toilets.

Yes. A Hydraloop device can be retrofitted to existing homes and apartments.

Any building suitable for the installation of a Hydraloop device needs a double piping network to collect lightly contaminated greywater and to distribute Hydraloop treated reusable water. The costs for setting up this double piping network will vary depending on the structure of the building. Your contractor can design the plumbing layout according to the guidelines in the Hydraloop Recycle Ready Guide.

If the building is prepared according to the guidelines in the Hydraloop Recycle Ready Guide , the installation and commissioning of a Hydraloop device will take less than 2 hours.

The Hydraloop app provides information about your current and past water savings, tank levels, and device status information. It also has shortcuts to FAQs, manuals, and much more.

The central server monitors the status of each operational Hydraloop device (operational, holiday mode, etc.), as well as tank levels, valve positions, pump settings, and displaced water volumes over time.

Yes, you can. But before you change the WiFi network, please shut down the old WiFi signal. Then follow the steps in the Hydraloop app.

Yes. All Hydraloop devices have a start-up time of 21 days, this is required by the NSF-350 standard. During this period, the Hydraloop device will supply backup water. After the startup period, the device automatically switches to reuse water.

Yes. You can control your Hydraloop device with the app on your smartphone. In the app, choose Settings, and Priorities to change your priorities for greywater reuse at any time. For example, in summer you may decide to reuse water in the garden, in winter for laundry.

When a Hydraloop device has utillized all reusable water in the tank, the device will automatically switch to backup water. Backup water is usually tap water. As soon as new reusable water is available, the Hydraloop device will automatically switch back to reusable water to supply your non-potable sources.

When no greywater flows into the device for 72 hours, it will automatically switch to ‘holiday mode’. Once you start using water again and greywater is produced, the device will automatically restart water treatment.

When you go away for more than 3 weeks, the Hydraloop device will automatically empty all the reusable water from the tanks. Once you start using water again and greywater is produced, the device will automatically restart water treatment. Do not turn off the Hydraloop device during your absence. The power consumption will be very low.

This depends on your situation.

1. Your washing machine delivers greywater into the Hydraloop device and you use Hydraloop reuse water for laundry.

In this case, you can only use laundry detergents containing bleach in the washing machine if you use the Bypass option in your Hydraloop app.

How to activate a temporary bypass:

In the Hydraloop app, go to Settings and select button four. (Cleaning shower/bath)

In the popup screen, select confirm.

In the Settings menu, button four now switches to green, indicating that the bypass is working.

After cleaning, rinse well with plenty of tap water.

To stop the bypass, select the green button. The color switches back to white and the bypass is stopped.

If you do nothing, the bypass automatically switches off after six hours.

Please note: If you accidentally use bleach without selecting the Bypass option, the biological treatment in the Hydraloop device is affected. Then you need to restart the bioreactor with your Hydraloop app. The ‘start-up procedure’ takes 21 days.

2. Your washing machine does not deliver greywater into the Hydraloop device, but you do use Hydraloop reuse water for laundry.

You can use laundry detergents containing bleach in the washing machine, because the used laundry water flows into the sewer.

3. Your washing machine is not connected to the Hydraloop device for input or output water.

You can use laundry detergents containing bleach in the washing machine, because the used laundry water flows into the sewer.

Yes, but if you want to dye your hair in the shower, you need to use the Hydraloop app for temporary bypass. This will temporarily redirect the incoming greywater directly to the sewer.

If you do not activate the bypass, hair dye will flow into the Hydraloop device. It wil not destroy the bioreactor, but the reuse water will be colored and could impact the treatment process.

In the app, go to Settings and select button three. (Rinsing out hair dye)

In the popup screen, select confirm.

In the Settings menu, button three now switches to green, indicating that the bypass is working.

After washing out the hair dye, rinse well with plenty of tap water.

To stop the bypass, select the green button. The color switches back to white and the bypass is stopped.

If you do nothing, the bypass automatically switches off after six hours.

The following items can negatively influence the cleaning performance of a Hydraloop device:

Bleach

Strong chemical non-biological cleaners

Paints and solvents

Pesticides and herbicides

Motor oil and high amount of lubricants

High amounts of pharmaceuticals and personal care products

Heavy metals

High amounts of body fluids or excretion

Exceptionally large amounts of large particles or debris (sand/soil)

Abnormally high amounts of massage oils, shampoos or liquid selfcare products like sunbathing oils.

Hydraloop devices are designed to efficiently treat lightly contaminated greywater, like water from showers and baths. To ensure optimal performance, it’s important to avoid certainsubstances that can impact the system. Here’s a list of items commonly found in households that may affect your Hydraloop device:

Bleach: While great for cleaning, high concentrations can harm the biological activity in the system. Avoid introducing water with chlorine concentrations above 1 ppm. If needed, use the Hydraloop app to activate the bypass option.

Strong chemical non-biological cleaners: Harsh cleaning agents with strong chemicals, like oxidizers (in some bathroom cleaners and general cleaners), can disrupt the biological processes in the system.

Paints and solvents: Chemicals in paints and solvents may be harmful to the biological processes occurring in the bioreactor.

Pesticides and herbicides: These chemicals can negatively impact the microbial communities responsible for treating water in the bioreactor.

Motor oil and lubricants: These substances can clog the treatment system, affecting both the process and the quality of the reusable water.

Pharmaceuticals and personal care products: Certain substances in pharmaceuticals and personal care products may not be effectively treated in greywater systems, potentially affecting the biological treatment process.

Heavy metals: Avoid introducing substances containing heavy metals, such as mercury or lead, into the system.

Large particles or debris: Items that could damage the system or impede its operation, like excessive amounts of sand or gravel, should be kept out. If you intend to connect your Hydraloop device to showers in an outside pool area, make sure to install a sand filter that avoids larger amounts of sand to enter the device.

Body fluids or excretion: While Hydraloop can handle small amounts of body fluids, large amounts (more than 250 mL during an average shower) should not be intentionally introduced. This includes vomit and blood.

Massage oils, shampoos, and self-care products: Excessive disposal of these products through the shower drain can affect the system’s performance. As an indicator: do not empty a quarter (1/4) bottle of product in the shower drain.

Please note: if you want to use these substances in the shower, you can always activate the Bypass Mode in the Hydraloop app. That way, the substances do not enter the Hydraloop device and are disposed directly into the sewer.

Descaling is part of the scheduled maintenance program of your device. Your Hydraloop installer will insert citric acid in the shower drain, which enters the Hydraloop device. Then, the device runs an internal cleaning cycle, descaling all essential components.

The start-up of a Hydraloop device will only take a few minutes.

No, but we do not recommend to disconnect your device.

To disconnect a Hydraloop device, you first turn off the backup water supply, second you disconnect the power and third, you disconnect all physical connections (input and output connections). If you want to keep using all water sources in the building, we recommend connecting the the greywater input line to the sewer and connecting the backup water line directly to all reuse water outlets.

All Hydraloop devices are self-cleaning and low maintenance. Depending on the model, water hardness, and individual user behavior, we advise a service and maintenance check-up every 6, 12, or 24 months. Your Hydraloop installer will advise you on the best schedule for your setup.

Please contact your Hydraloop installer for maintenance assistance. If you don’t know who your Hydraloop installer is, please contact Hydraloop directly at support@hydraloop.com. We will direct you to a local Hydraloop installer in your area.

On average, a regularly scheduled maintenance session takes about 1 hour.

The expected lifetime of the UV light is 3 years. We recommend scheduling a preventive maintenance check for your device by your Hydraloop installer every two years. During this check, the UV light bulb is exchanged.

The warranty period for a Hydraloop device is specified in the Warranty Certificate for two years on specific components. The Certificate may vary according to national law.

Are you interested in a longer warrenty period? Selected Hydraloop partners offer Hydraloop Care, extending the warranty on all components to 5 years or longer. Hydraloop Care can be extended to 20 years. For more information, please contact support@hydraloop.com.

Hydraloop devices have been designed to last for at least 20 years.

Yes. All Hydraloop devices are certified by the highest international standards for greywater quality and electrical safety.

NSF is an American organization with worldwide recognition for its third-party testing of water treatment products. The NSF-350 standard establishes material, design, construction, and performance requirements for onsite residential and commercial water reuse treatment systems. It also sets water quality requirements for the reduction of chemical and microbiological contaminants for non-potable water use.

Hydraloop devices are certified by NSF-350 and many other international certification bodies.

Each Hydraloop device has a visual status light and audible warning indications. The light on the front of the system changes color based on the condition the device is in.

Your Hydraloop device will issue a warning in case of an UV lamp failure, a high water alarm, air pump alarm, water circulation alarm and water distribution pump alarm. These cases are all highly unlikely.

Yes, Your Hydraloop device will produce a discrete beeping sound to issue a warning or alarm condition. You will also receive an alert on your smartphone (in the Hydraloop app). Your Hydraloop installer will receive a warning about your device in the Hydraloop Device Manager (HDM).

This depends on the type of warning. In most cases, your Hydraloop device will continue operating.

When an orange status light appears, this indicates that the device possibly needs attention on components on short term. Since your device is monitored 24/7, your Hydraloop installer knows about this. If the status light does not change after 24 hours, please contact Hydraloop support in your Hydraloop app.

A red light on the LED panel can indicate two things. 1. The Hydraloop device detects an issue with your toilets or washing machine. 2. There is an issue with the Hydraloop device, and no water can be distributed to the toilets and washing machine.

In case of a red light, please contact Hydraloop right away, directly in your Hydraloop app.

Yes. During a warning (orange) or alarm (red), your Hydraloop device will automatically switch to backup water. There is one exception: if there is an issue with the distribution pump, the Hydraloop device cannot switch to backup water.

When an orange status light appears, this indicates that the device possibly needs attention on components on short term. Since your device is monitored 24/7, your Hydraloop installer knows about this. If the status light does not change after 24 hours, please contact Hydraloop support in your Hydraloop app. In case of a red light, please open your Hydraloop app and contact Hydraloop directly.