Speakers | Rainwater

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.

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

–Thomas Carruthers

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:

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

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Upcoming Presentations

If your group, club, HOA, or organization is looking for speakers please call Larry at 210.286.8050 to schedule a place, time, and topic.

Following are scheduled presentations with seating availability as noted; for further information call Larry at 210.286.8050.

9/10/24 Rain Harvesting Wilson County Mstr Grdnrs 10-2 No open seating

9/16/24 Rain Harvesting Mammen Library 12-1 Open to public

9/19/24 Rain Harvesting Garden Ridge Library 12-1 Open to public

9/19/24 Aquifer Status Mystic Shores HOA 6:30-8:00 pm Open to public

9/26/24 Rain Harvesting 1:00-2:00 Tye Preston Library Open to public

1/21/25 Rain Harvesting Gonzales County Mstr Grdnrs 8:30-12:30 No open seating

4/9/25 Rain Harvesting Comal County Mstr Grdnrs 1-3 No open seating

4/15/25 Rain Harvesting Guadalupe County Mstr Grdnrs 10-3 No open seating

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)