1. Water Sense
The Irrigation System of the Future
For information contact Bill Graham at (423) 304-2647 or
billgraham@charter.net.

2. Summary
The Water Sense irrigation system is a product that will change the irrigation and lawn care industry
forever. Easily installed in new and existing sprinkler systems, it has been designed with both lawn
care professionals and the average homeowner in mind. To operate, slow release tablets containing
the desired applications are placed in separate canisters. A controller is then set to determine the time
and length of each application.
The Water Sense system does the rest!
The Water Sense system significantly reduces the time and cost associated with granular applications
of fertilizers, herbicides and insecticides. But the benefits go beyond that. Because Water Sense
controls each application, problems associated with inconsistent coverage, water runoff and ground
contamination are eliminated in properly installed systems. And the composition of the slow release
tablets can be designed to be environmentally friendly. Property owners can enjoy a beautiful lawn
and landscape without concerns about adverse impact to the environment.
All-in-One System
While the concept of delivering
fertilizers through an irrigation
system is not new, the design of the
Water Sense system is. Consisting
of three components, a
Timer/Controller, Canister Manifold
and slow dissolving Chemical
Inserts, the Water Sense system is
flexible and easy to use.
Slow dissolving Chemical Inserts
made of solid fertilizer and lawn
controls are easily placed in
individual canisters of the manifold.
Each Canister is opened and
closed at preset intervals by the
Timer/Controller. When a Canister
is opened, water flows through it
and the desired application is
dispensed.
Market Potential
For potential investors, the Water Sense irrigation system offers an opportunity to participate in a large
and growing market –
• $5 billion annual lawn and garden fertilizer, herbicide and insecticide market
• 500,000 new irrigation system installations per year
• 10 million existing irrigation systems

3. Conservative estimates indicate that by the third year, annual sales will reach $1 billion with net profit
of $800 million. And production of the Water Sense system can be quickly ramped up. Other than the
controller, tablets and cartridges, it uses existing components of most in-ground sprinkler systems.
And the system is well protected by its design and chemical distribution patent.
The Right Product at the Right Time
Since 1996, Bill Graham, owner of the Water Sense system has installed hundreds of residential and
commercial irrigation systems in the Southeast U.S. In his discussions with homeowners, they have
repeatedly expressed their dissatisfaction with their existing lawn care service. They were dissatisfied
with the outcome, objected to the cost, or questioned whether the service had ever been applied at
all.
This encouraged him to begin development of a system that could deliver lawn care products through
an existing or newly installed irrigation system.
Keeping costs low was a priority, so was using existing technology. The Canister Manifold is made from
off-the-shelf parts and requires only 1-2 hours to assemble. The Timer/Controller uses common
electrical functions and components to control the opening and closing of the Canisters. And Chemical
Inserts can be designed like slow dissolving chlorine tablets used in residential swimming pools.
When he knew that he had a marketable concept, Mr. Graham obtained a utility patent from the U.S.
Patent Office, Patent Number US 6,948,663 B1, September 27, 2005. By filing a utility rather than a
design patent, relatively broad claims will continue to provide patent protection.
Water Sense
The Irrigation System of the Future