This Iowa State University Extension video describes how to build a system to catch, store and reuse the rainwater for irrigation in a high tunnel. The cost of installing rain gutters, rainwater storage tanks, and an electric pump is estimated at $1,200. A solar-powered pumping system will add approximately $700 to that cost.
This material is based upon work that is supported by the National Institute of Food and Agriculture, U.S. Department of Agriculture through the Sustainable Agriculture Research and Education (SARE) program. Any opinions, findings, conclusions, or recommendations expressed in this publication are those of the author(s) and do not necessarily reflect the view of the U.S. Department of Agriculture or SARE.