Water is collected and used and directed from rooftops and ground water so that instead of running under the house it can be used in a pond and then into a couple of small water features.Even in the summer when I water my grapes the water is collected after passing through the soil at the back of my house. The problem that this build solves was that in dry weather I want my roses along my driveway watered. In the wet weather I want to avoid having mud and running water on the surface. I had a pipe running along the side of my driveway and to get rid of the excess water and I would remove a section of this pipe in the summer so water would be available for the roses . Last fall I was kind of busy and forgot to replace the pipe and when the rains came I had mud. I needed a valve box to switch between water using and water redirecting.
Step 2: Inner form
This is the form to create the inside of the box. ABS pipe will make the holes and the wood band was to make a sluice gate.