I was wondering what the best type of water to grow in is.
Can i put a water butt in the back garden to collect the rain water or will it be too contaminated with garden matter???
and what is rain water like to use????
I like the *idea* of rainwater, but I do not want to introduce anything from outside to the inside. Too worried about bugs and diseases. Maybe I'd be more tempted if my ordinary tap water didn't produce such good results.