Jan Flora wrote:

Get some food-grade poly drums and set them up to catch
the rainwater from the downspouts on your house.

Why would food grade drums be necessary for catching rain water
running off a non food grade roof... to do what... pour on the non
food grade ground. Am I missing something, or why wouldn't an
ordinary plastic trash can be suitable?

You can buy low quality for like $10-$15 but they will decay from UV
exposure and probably crack from freezing temps.

I have two of these, excellent quality: http://tinyurl.com/79bqf

http://www.lowes.com/lowes/lkn?actio.../20&lpage=none