WILLIAMSBURG IRRIGATION -       (757) 291-9892
    
We design sprinkler systems with water      conservation in mind!
                 
Water management is the single biggest issue our industry faces, and it’s here to stay. Every irrigation professional has heard about the increasing importance of water management and, even though the situation affects everyone differently, it impacts each of us – period.Water is essential to the survival of every living thing on the planet. As our population increases and climate change impacts water availability; local, state, and federal regulatory efforts will certainly intensify. Predictably,public priorities for water use will continue to favor drinking supply, food production, manufacturing, and emergency services over the maintenance of healthy, attractive, outdoor landscapes. As a result, the need forefficient irrigation design, installation, and maintenance practices are greater than ever before.GREEN IS GOOD Even though outdoor water use is a concern, irrigation bans are not the answer. The solution is about using water efficiently - maintaining landscapes with less water. Trees, shrubs, flowers, and healthy turf are a vital sourceof oxygen and offer many valuable environmental and personal comfort benefits such as:• Reducing noise pollution through blockage and absorption• Preventing erosion and runoff• Minimizing pollution effects on groundwater, streams, rivers, and lakes• Shading houses, buildings, and their surrounding areas, reducing energy use for coolingMany organizations are doing their part in promoting these benefits and the importance of sustaining them in our environment. As an example, Project Evergreenhas established their mission around the benefits of preserving green space.THE SOLUTION Fortunately, individuals and organizations are involved. Efforts are being led by industry groups to helpeducate businesses and consumers about efficient water use.Irrigation Association® (IA) “SWAT” (Smart Water Application Technologies) program:An international partnership initiative created to promote landscape wateruse efficiency through irrigation technology.The Environmental Protection Agency (EPA) WaterSense® program:A voluntary public-private partnership designed to help homeowners and businesses manage their water use.
 
Did you know about the James City County rain sensor rebate program? Click on the rain sensor for details.
 
Also now you can save on your electric bill by having a solar powered controller for your sprinkler system. heres some info;
 
SOLAR-POWERED IRRIGATION CONTROL
Operated from solar electric power, this sprinkler valve control unit needs no connection to utility electric power. Ideal for remote homes, parkgrounds, and unattended facilities. Mounts on pole or wall. Zone outputs are to standard 24Vac solenoids, which are used by all popular irrigation valves, such as Toro, Richdel, Rainbird, and Champion. Shown below with cover removed, the set consists of three main units:
1. Timer Unit incl Charge Regulator
2. Solar Panel
3. Battery
FEATURES
o Easy to Maintain - - These units are very trouble free. Service information and parts list included. Control unit is composed of standard electronic modules that are available from multiple sources. No hard-to-find parts!
o Guarantee - - Solar panel is guaranteed for 5 years. Control unit is 1 year and battery is 1 year.
o Battery Life - - Battery typically lasts 5 years. We recommend that battery ($59 or less) be replaced every 4 years.
o Accurate Timing - - Electronic clock operates from solar battery power and is not subject to mistiming due to power failure. Set and forget.
o Standard Valves - - Does not require 12Vdc solenoid valves. Any  24Vac valve may be connected.
 
SOLAR SIZING: Several sizes of solar panels are available: the -05 models include 5-Watt BP Solarex array, adequate for latitudes below 40 degrees. Higher latitude installations or shady locations may require the -10 (10Watt)  or higher Watt versions.  For extreme shade, specify the 65-Watt solar  panel.
Standard cabinet color is electrical gray. Green available upon request.  (Already have 12Vdc power? Timer is available separately  
 
 
How to choose solar panel size: Number of "watering hours per week", given below,  is for siting  latitudes up to 35degrees. More accurately, this is the rating for any area with 5ESH (equivalent solar hours), such as Southern Calif. A more northerly site such as Winnepeg or a more cloudy site such as Istanbul, with 2.5ESH, will have one-half as many watering hours available.  Likewise, areas of low cloudiness, with an ESH of 7 hours, will provide approx 50% more watering time. Note:  8 zones x 15 min/zone x 5days/wk = 10 watering hours per week
 
 
Probably the best water saving technique that we apply to sprinkler system design is drip irrigation;
 
Drip irrigation can help you use water
efficiently. A well-designed drip irrigation system
loses practically no water to runoff, deep
percolation, or evaporation. Drip irrigation
reduces water contact with crop leaves, stems,
and fruit. Thus, conditions may be less favorable
for disease development. Irrigation scheduling
can be managed precisely to meet crop demands,
holding the promise of increased yield and
quality.
Growers and irrigation professionals often
refer to “subsurface drip irrigation,” or SDI.
When a drip tape or tube is buried below the soil
surface, it is less vulnerable to damage during
cultivation or weeding. With SDI, water use
efficiency is maximized because there is even less
evaporation or runoff.
Agricultural chemicals can be applied more
efficiently with drip irrigation. Since only the
crop root zone is irrigated, nitrogen already in the
soil is less subject to leaching losses, and applied
fertilizer can be used more efficiently. In the case
of insecticides, less product might be needed.
Make sure the insecticide is labeled for application
through drip irrigation.
Additional advantages of drip irrigation include
the following.
◆ Drip systems are adaptable to oddly shaped
fields or those with uneven topography or soil
texture; these specific factors must be
considered when designing the drip system.
Drip systems also can work well where other
irrigation systems are inefficient because parts
of the field have excessive infiltration, water
puddling, or runoff.