"dean" wrote in message

You mean I should just make it rain when needed?

How deep are the trenches? I don't have a problem renting a trencher
for a day or two.


No, when it does not rain, the grass does not grow. I'm not upset when
nature happens like that.

The trenches are about 8" but may differ in some climates. The system is
supposed to be drained at the end of the season if it could freeze.