Rupert wrote:
snip

Avoid grey water from kitchen sink-it can contain too much fat and rubbish.
Grey water tends to be alkaline so do not use it on acid loving plants.
If you are desperate you can adjust the pH to neutral with a bit of vinegar.
I last used grey water during the 95/96 drought at my previous house.
I chucked in straw and soil which acts as some kind of purification and then
used it a few days later. There were no casualties but I was also watering
with clean rain water from the tap:-)

In genuine drought conditions, one should use a bowl in which to do the
washing up and chuck the resulting water onto the garden. (You're
right about 'fatty water', though) My ex father in law's housekeeper
did this in the 1976 drought and the inlaw was amazed at the good
results on the greenfly. I was amazed at his amazement because he was
a very keen and knowledgeable gardener but didn't know about this,
whereas I was a comparative beginner and had learned that from my
grandfather. Going easy on the washing up liquid is probably a good
idea but we now use Ecover products (which I would recommend to anyone)
and I don't think they're likely to present a problem. If someone
knows otherwise, I hope they'll tell us!
--
Sacha
www.hillhousenursery.co.uk
South Devon