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Originally Posted by sally
how will the garden cope with soapy water? Will kill greenfly but will it kill the grass too?
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Usiing "grey" water is a tricky one, some people use it for watering everything, but others tend to use it only if they can guarentee there is no element of dangerous chmicals, for instance if they use Ecover or something similar
from wikipedia....
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Greywater typically breaks down faster than blackwater and has much less nitrogen and phosphorus. However, all greywater must be assumed to have some blackwater-type components, including pathogens of various sorts. Greywater should be applied below the soil surface where possible (e.g. in mulch filled trenches) and not sprayed, as there is a danger of inhaling the water as an aerosol.
However, long term research on greywater use on soil has not yet been done and it is possible that there may be negative impacts on soil productivity. If you are concerned about this, avoid using laundry powders; these often contain high levels of salt as a bulking agent, and this has the same effect on your soil as a drought.
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