These are the components in the DIY Unpowered Terracotta Valve Kit
The kit is designed to be affordable for smallholders anywhere in the world. To this end I have made delivery free to any postal address worldwide. The Unpowered Terracotta Valve saves more water than other irrigation controller without expensive soil moisture sensors.
The kit can be purchased online at the Measured Irrigation website.
The User Manual for the DIY Unpowered Terracotta Valve Kit can be downloaded from the home page of the Measured Irrogation website.