Grey water is made up of bath, shower, bathroom sink and washing machine water, it is not advisable to use your kitchen water as this is damaging to plant life because of the fat content.
An average household (family of 4) will use between 200-300 litres of reusable water on a daily basis. The residues, soaps etc in the water in diluted quantities can provide useful sulphates and nitrates which some experts say is more beneficial to the garden than clean tap water.
It is advisable to use biodegradable products in the washing machine. The average suburban garden accounts for about 35% of domestic water consumption. Most of the concerns about grey water are to do with the hygiene aspect and odours of the water, but both these aspects are eliminated if the water is re-used as soon as possible and bacteria has not been given the the to produce.
Advantages of Using Grey Water
Lower fresh water usage
Less strain on septic tank
Grey Water has effective nutrients for plant life
Ground water recharge
Cost effective, up to 80% of waste re-used
Avoid penalties on water restrictions
Connect to existing irrigation
The Budget DIY kit consists of:
Underground Tank and Lid 90L
0.9kW Submersible pump with float switch
Adaptors (non return, 50mm inlet and overflow)
Savings and Payback
|5,326 kL free||5,326kL @ R3.33||7,101kL @ R7.10||Excess Usage @ R10.52||Total||Difference|
|Average usage with grey water||R0.00||R17.57||R50.41||R139.36||R207.33|
|Average usage with irrigation||R0.00||R17.57||R50.41||R297.16||R365.14||R157.81|
|3.728kL free||3,728kL @ R4.01||4,971kL @ R8.52||Excess Usage @ R9.32||Total||Difference|
|Disposal charge with grey water||R0.00||R14.95||R42.34||R86.42||R143.71|
|Disposal charge without grey water||R0.00||R14.95||R42.34||R226.22||R283.51||R139.80|
The above table is based on an actual study where the average usage of a household was 31 000kl with a Grey water system and the average usage of a household that was 46 000kl that irrigates with municipal water in the Western Cape area.
The tariffs that are shown are standard throughout the Cape Town area and show the savings that are possible. If the irrigation is metered for a period of six months over summer then the saving that is possible would be R1 785.66 over this period. The water usage and disposal charge work on the same usage ie : the more water you use the higher your disposal charge. The figures speak for themselves and show that the average pay back period on a Grey water system would be on average a period of 3 years.
Please note that stock availability is subject to prior sales. Prices exclude delivery.
|Disclaimer||Please note that stock availability is subject to prior sales. Prices exclude delivery. The image serves as an example of what the product looks like and may differ slightly in appearance.|
|Guarantee/ Warranty||12 month product warranty|
|Water Recycling Product Type||Grey Water Systems|