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Why We Present

Our goal is to educate Comal County residents and organizations on the latest techniques for collecting and storing rainwater, to promote water conservation and environmentally sound methods of landscaping, and to encourage business models encouraging rainwater harvesting.

Need A Speaker for your meeting?

Steven and Larry provide informative conversations and engaging presentations about rainwater collection options to individuals, neighborhood and business associations, civic groups, and community organizations.  Want to know about rain catchment alternatives, filtration, or water availability issues?  We will, without charge, speak to you or your group about any rain harvesting topic from rain capture to water-conserving fixtures.  Choose the topic of your choice and we'll tailor the presentation to fit your needs.  Here's how it works:

  1. Browse this website to find a program topic you'd like to know more about.

  2. Request a speaker by completing the form to the right.


Looking for a series of topics to fill your annual calendar?  With more than xx topics, we've got you covered.  Contact us​ to learn more.

Request a Free

Thanks for contacting us; we'll get back to you soon!

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"A teacher is one who makes himself progressively unnecessary." 

–Thomas Carruthers

Upcoming Presentations


Roofwater Harvesting - The Basics

Collecting Rainwater in the Landscape

Passive and Active Systems; Storage, and Distribution

Rainwater Collection and Storage System for Homes

Rainwater Ponds for Aquifer Recharge

Recharge, Retention and Reuse

Rain Collection, Conveyance, Storage, Distribution, & Use

Rain Harvesting for Gardens

. . . your topic of interest

Recent Presentations

Dr. Steven Grainger and Dr. Larry Sunn have spent much of their careers teaching in a university or training environment; both have discovered the sheer joy of passing along meaningful information that helps enhance others' life.  Some presentations delivered by Grainger and Sunn consultants include:

  • The Complexities of Local Groundwater - Comal County Conservation Alliance; Larry

  • Water Conservation and Harvesting Rainwater - Garden Ridge Library; Steven

  • The Trinity Aquifer & Why We Suck - Master Gardeners, Tye Preston Library; Larry

  • Brain Preference - BSB Chamber of Commerce; Larry

  • Rainwater Harvesting - New Braunfels Library; Steven

  • Avoiding Death by PowerPoint - CISD Emerging Leaders; Larry

  • Rain Harvesting Basics - 5 Comal County Libraries (click here for presentation PDF)

  • Rain Harvesting Basics - Watch the 58 minute video (click here)

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