DLM Instruction, Inc.
PO Box 2345
Friendswood, TX 77549
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Welcome to the Irrigation License Website!
Here you will find all you need to maintain or become an irrigation professional.
The Technician Certification and the Landscape irrigation classes are being taught by Dave McCullough. Dave has been extensively involved in irrigation work for over 30 years, having owned his own Landscape / Irrigation company for 27 years. As if that is not enough, Dave has been involved in Turf Irrigation Sales of 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 Today!