Rainwater harvesting or recycling (RWH) is the collection and storage of rain, rather than allowing it to run off. Rainwater is collected from a roof-like surface and redirected to a tank.
Grey Water, greywater, or gray water recycling (GWR) depending on where in the world you are, is the collection, filtration and storage of waste water. Specifically from wash hand basins, showers, baths, ablutions, swimming pool back-wash, and condensate, for reuse in non-potable distribution such as WC flushing, Irrigation and Wash Down.
These are common terms in the industry. Basically, it simply refers to the way the water is distributed to the point of use.
Direct – the stored water is pumped directly from the storage tank to the point of use. mains water is topped-up into the main storage tank. This means that you have better pressure and higher flow rates. However, if you have a pump failure of power cut you lose your non-potable supply i.e. no toilet flushing!
InDirect – the water is pumped to a cistern, normally a header tank. The mains water is topped up into this tank with a mechanical ball valve. The water is distributed to the point of use from the cistern by gravity. This means that even in the event of pump failure or power cuts, you still have a supply of water. however, the pressure is not suitable for some high pressure WC cisterns, and not suitable for irrigation.
Absolutely! Our grey water systems collect water from the wash hand basins, showers and baths, for reuse in WC flushing. When you combine our system with a sewage treatment plant (STP) you are reducing the volume of water going into the system, and increasing biological density (more bacteria per litre of waste), and lowering the level of surfactants, this actually helps the treatment plant clarify and treat your waste more rapidly.
Of course, having a septic tank can be costly, and time consuming, with regular costs for tank emptying. By diverting the less contaminated waste of wash hand basins showers and baths, treating it, then using it for WC flushing, you are reducing the volume water entering the septic tank by the total volume of WC flushing.
This can reducing you emptying frequency by as much as 40%.
Our grey water system is a standard size, suitable for up to an 8 bedroom house. The rainwater system comes in multiple sizes from 1,500 litres up to 10,000 litres. We calculate the size of the tank using a complicated equation but two of the main considerations are the roof size (in m2) and the location.
We use the maximum capacity of the house, in order to future-proof the property.
We recommend the installation of UV units (ultraviolet lights) in our water recycling systems to act as a biocide. This means it will kill or deactivate any bacteria that may appear. This gives a secondary measure against bacterial growth, the first being water treatment.
We would recommend a UV unit to anyone, but particularly to those wanting to use the collected water for irrigation, to mitigate the risks of aspirating airborne diseases.
Absolutely! Our Aquaco Home range has been designed to be easy to install. Not just for engineers or domestic plumbers, but DIY-enthusiasts too.
No. Discharge from kitchen sinks and dishwashers is blackwater, not grey water so this is not connected to the system, but instead goes to the sewer for treatment.
No. The water that is collected, and treated from either the rainwater system or greywater system, is NOT to a potable standard. Therefore it can not be used for anything other than toilet flushing, irrigation or external uses such as vehicle washing.
This depends on the type of combined system that is installed but generally speaking, the two water supplies are kept separate, but are installed in the same place at the same time.
A residential maintenance kit can be purchased from us for £49.95 which includes consumables for 12 months, depending on the use and size of the system. Quotes can be provided for commercial maintenance too.
Aquaco does not install domestic/residential systems, but they have been designed to be easy to install, and not just by domestic plumbers. We will provide you with a comprehensive Operations and Maintenance Manual and we offer technical support over the phone during office hours.
The combined system includes the Grey water recycling system and the rainwater harvesting system, but both are kept separate. They are shipped together and can be installed in the same place at the same time but they are two separate systems.
By installing a grey water system, you will be reusing the water that would otherwise be going into the sewer. So yes, you will therefore be saving money because less water will be going down the drain.