On Tue, 25 Jun 2013 18:18:43 +1000, David Hare-Scott wrote:

I am assuming that you only have a modest garden and you
are on domestic water mains.

The garden doesn't even qualify as modest.

It's about 10 feet long, by about 4 feet wide.

And, it's connected to well water, at a pressure of about
80 psi.

Even the tomato plants don't qualify as modest (yet):
http://www2.picturepush.com/photo/a/...g/13410510.jpg