Greywater
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Water restrictions do not apply to greywater use, which means it can provide a good alternative water supply; however care must be taken when using greywater to reduce human and environmental risks.
Before using greywater, consider:
- First adopting other simple and effective ways to save water. Go to Saving Water for more information.
- Using rainwater instead (it is the best quality alternative to mains water and should be used in preference to greywater). Go to Rainwater Tanks for more information.
What is greywater
Greywater is wastewater that consists of all non-toilet wastewater. It includes wastewater from showers, baths, spas, hand basins, washing machines, laundry troughs, dishwashers and kitchen sinks.
Whilst kitchen wastewater is technically greywater, Council does not recommend the use of this wastewater as it contains food wastes and other chemicals which are more difficult to breakdown.
How to use greywater
The simplest way to collect and use greywater is to use a bucket or container, though there are also a range of systems for using greywater, including:
- Simple diversion systems (often available as simple greywater diverters from good hardware stores)
- Diversion and filtration systems
- Diversion with treatment systems (more complex)
For more information on the range of greywater products available, visit the savewater!® website.
Some simple safety measures:
- Use the safest source of greywater possible and use environmentally-friendly detergents and cleaners (i.e. low-salt, low-phosphorous and biodegradable)
- Take care when using buckets and containers around young children and pets
- Don't store greywater for more than 24 hours
- Don't use greywater on edible plants such as vegetables
- Never use greywater which has faecal contamination (e.g. water to wash nappies)
- Use sub-surface irrigation where possible, and avoid spraying and hosing with greywater - this can spread chemicals and bacteria
- Minimise strains and injuries when carrying buckets by applying correct heavy lifting techniques
- Monitor your greywater use - check for odours or other signs (e.g. yellowing plants/grass) which may indicate that your system is not working effectively.
EPA Victoria has developed a useful publication on the Do's and Don'ts of greywater use around the home. Visit the EPA Victoria website for more information or phone (03) 9695 2722.
Approvals for greywater
In Frankston City, you do not need a permit for a simple diversion system.
For a diversion and filtration system, check with Council's Health Department on whether you need a septic tank permit.
More complex diversion and treatment systems require EPA approval in both sewered and unsewered areas and must also have a septic tank permit from your local council.
For further information, contact Council's Health Department on 1300 322 322.
Rebates
For information on current rebates for greywater systems go to Grants and Rebates.