Watering Grid for Square Foot Garden ~ Wish List

I need to research this more before a final decision, but I think this square foot gardening watering grid is ingenious!  It was shared here on the Square Foot Gardening Official Forum by Hoggar.  He designed it and gives detailed information on how we can make our own.  I'm adding this to my square foot gardening wish list.

Image credit goes to Hoggar on Square Foot Gardening The Official Forum