DLM Instruction, Inc.
PO Box 2345
Friendswood, TX 77549
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Welcome to the Irrigation License Website!
Here you will find the information you need to become an irrigation professional.
The Technician Certification and the Landscape Irrigation classes will be taught by David McCullough. David has been extensively involved in the irrigation industry for over 30 years, having owned his own Landscape / Irrigation company for 27 years. As if that is not enough, David has been involved in Turf Irrigation Sales for some of the leading Irrigation distributors in Houston.
Mr. McCullough is a very experienced teacher with a background that includes a Master of Education degree and has held teaching positions at Houston Independent School District and Aldine Independent School District.
What's New in Irrigation!