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Grey Water Additive

GWA [Grey Water Additive]

 For treating wash water from household drains so it can be re-used in garden, yard & toilets

1.     Degrades oils and greases found in domestic bath, shower, laundry & kitchen waste water.        

2.     Degrades residues: soaps, shampoos, cosmetic wastes and body fats from bathrooms

3.     Controls odour in drains and irrigation water

4.     Replaces the natural water bacteria destroyed by heating and detergents.

5.     Greatly improves the quality of your final effluent into the environment, which will not smell

6.     Fights ‘germs’ if pathogens are in the water.              Also in double ‘ziplock’



Dosages          Based on typical results achieved under average conditions

Depends on the size of your water storage system.

 Typical 3 bed roomed house with 500lt storage tank

3grm /week

 4 bed roomed house with 1,000 lt storage tank

5grm / week

 Thereafter, calc. on the size of the storage tank at additional

 2grm / 500lt / week


On existing systems, there will be an historical build-up of fat in the tank and lines.

With new systems, double the dose for the first two weeks. Once GWA has settled in and begun to break down the fats, the system will run clean and odour free. After a few weeks you may be able to reduce the dose – by observation - but never stop the routine dosing.                         


Prices: Nett   Vat Inclusive. Including Insured Parcel Post to your P.O. Box in SA     

GWA  500

R    461.70

Lasts a    500lt system for 12 months

GWA  1000

R    798.00

Lasts a 1,000lt system for 12 months

GWA Bulk

R 1,631.10 / kg

Use at 300grm  per 1,000 lt storage/treatment per annum


Note: 3grm = 1 x level teaspoon:  5grm = 1 x heaped tspn.  When posted, GWA will [normally] be sent in a plastic ‘mini-grip’ re-sealable / semi airtight pack to save on postal charges.

Application.  GWA works best in conjunction with an Air-Mix aerator – ask us for details. Shake directly onto the water in the storage tank and circulate with the Air-Mix, or stir in with a long strong stick.  If tank is inaccessible, wash down the sink / basin waste.

GWA is very ‘strong’ and a little goes a long way. Water will not be potable quality. Avoid play areas.


GWA is fully accredited under international health and environmental legislation. Technical information and case studies on: water.  GWA is a natural, non-toxic organic product, safe in gardens etc. It will not harm people, plants or pets in any way.                                  
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