10/13/2013. Irrigating during a rain storm.. You should consider renovating your irrigation system when you see your system.

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Amber Parks
5 years ago
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Renovating gyour 40 year old Condominium project

Co. Member, ASLA, ASIC, EPA WaterSense Partner

. when you need to irrigate during the day to simply

When your system is overwatering and causes puddles.

1 You should consider renovating your irrigation system when you see your system. Renovating gyour 40 year old Condominium project Landscape Presented by; Allan Schildknecht, Pacific Pipe Co. Member, ASLA, ASIC, EPA WaterSense Partner Irrigating during a rain storm.. when you need to irrigate during the day to simply apply enough water. When your system is overwatering and causes puddles. Or you see water weeping over the sidewalk and down the gutter You operate at too high of pressure and you have misting sprinklers which blow onto your walls, windows and cars. 1

supports water conservation, research & development, and the utilization of best

landscapehawaii.org/waterconservation.asp ti Background Facts: 1.

A poorly designed, installed and/or maintained irrigation system can waste up to 50% of

Installing and maintaining a water efficient irrigation systems is one of the most

100% 80% 60% 40% 20% 0% Condominium Water Use Wasted Usable Potable uses LICH Supports and

2 Or when you see any of these problems. Instead of something like this that is designed, installed and most importantly Maintained Properly! IRRIGATION WATER CONSERVATION Position Statement: Landscape Industry Council of Hawaii supports water conservation, research & development, and the utilization of best management practices to conserve outdoor water usage within the landscape. ti Background Facts: 1. Landscape irrigation consumes 50% or more of your associations water usage. 2. A poorly designed, installed and/or maintained irrigation system can waste up to 50% of that water due to inefficient irrigation practices or maintenance 3. Installing and maintaining a water efficient irrigation systems is one of the most effective ways to reduce water usage and save money! 100% 80% 60% 40% 20% 0% Condominium Water Use Wasted Usable Potable uses LICH Supports and encourages the following Best Management Practices The first Step starts with a good Design! A Design using proper equipment During Renovations Equipment must be selected to suit the specific needs of the plants and site conditions. Avoid using sprinklers where the precipitation rate exceeds the infiltration rate of the soil and slope conditions. 2

Design systems using Smart Controls Design systems for the specific hydrozones Zone systems so similar sprinklers irrigate similar plantings

Save 30 to 50% of your irrigation water usage Typical Water Savings with a Smart Controller over Monthly or Weekly adjustments 0.25 0.2 0.

05 Inches of used with Daily ET Adjustments Inches of Used with Weekly Adjustments Inches of Used with Monthly Adjustments 0 1 3 5 7 9 11 13

A typical Condo system on Oahu has forty valves operating at 50 gpm and operates 10 minutes per day.

gallons/week = 60,000 Gallons/month * Oahu Water Rates at $3.

(twice that with sewer) * Pays for Controller within 3 to 6 months. Know how much water are you using?

Sub metering irrigation also allows you to deduct that water off of your expensive sewer charges.

3 Design systems using Smart Controls Design systems for the specific hydrozones Zone systems so similar sprinklers irrigate similar plantings and site conditions SMART Controllers which monitor climatological and/or soil moisture conditions are the current standard. Save 30 to 50% of your irrigation water usage Typical Water Savings with a Smart Controller over Monthly or Weekly adjustments Inches of used with Daily ET Adjustments Inches of Used with Weekly Adjustments Inches of Used with Monthly Adjustments What Does One Minute mean? A typical Condo system on Oahu has forty valves operating at 50 gpm and operates 10 minutes per day. System uses approximately 20,000 gallons/day A one minute reduction in run time equates to a savings of 2,000 Gallons/day = 14,000 gallons/week = 60,000 Gallons/month * Oahu Water Rates at $3.80/1000 gallons 1 minute savings/station/day = 60,000 gal = $228/month in water savings per month. (twice that with sewer) * Pays for Controller within 3 to 6 months. Know how much water are you using? Key to water conservation You don t know if you don t sub meter your irrigation usage. Sub metering irrigation also allows you to deduct that water off of your expensive sewer charges. Sub metering also allows you early detection of problems such as leaks or nonoperating systems. Typical Installation Detail Incorporate Water Conserving products into you re the design. Pressure regulation at the water source reduce excessive pressure within the system which will increase the life cycle of the system. Pressure regulation at the remote control valves will insure each circuit operates within the optimum pressure range for that circuit. Pressure Regulated Sprinklers insure each sprinklers operate s at it s optimum pressure. Using check valves in the base of the sprinkler minimize water lost from weeping out of low sprinkler. Helpful everywhere, but a must on slopes. 3

Encourage the use of Drip Improved Efficiency Drip irrigation operates in the 85 to 95% range of efficiency vs.

Drip may not be suitable for all applications Example Turf Perfect for specimen plantings, hedges or small narrow planting areas Minimal disruption to

efficiency Range Rain Bird s Uand HE Series nozzles are in the 70 to 77% range Check with the people at the trade show today.

A Rain Garden is a practical method that can be maintained with little or no irrigation i The results don t need to look like desert landscaping For more

LICH Supports and encourages the following Best Management Practices For Landscape Maintenance and operation of our systems. BMP for Landscape Management!

4 Encourage the use of Drip Improved Efficiency Drip irrigation operates in the 85 to 95% range of efficiency vs. conventional sprinklers which operate in the 45 to 75% efficiency range. Drip may not be suitable for all applications Example Turf Perfect for specimen plantings, hedges or small narrow planting areas Minimal disruption to existing Easy to install, then mulch over Dripper lines are most common and come different flows and spacing Resulting in watering small areas wetting patterns as shown. Results in less weed growth as a plus New High Efficiency Spray Nozzles Many enhancements available Toro s Precision Jet operates in the 70 to 80% efficiency Range Rain Bird s Uand HE Series nozzles are in the 70 to 77% range Check with the people at the trade show today. New and Improved Nozzles Rain Gardens should be incorporated into all Designs A best way to save on irrigation usage is simply not to have to irrigate it. A Rain Garden is a practical method that can be maintained with little or no irrigation i The results don t need to look like desert landscaping For more info attend Jolie Wanger s presentation this afternoon 2:00 PM Pr = 1.0 to 1.6 /hour This not only saves water, but minimizes runoff as well! LICH Supports and encourages the following Best Management Practices For Landscape Maintenance and operation of our systems. BMP for Landscape Management! As a minimum, adjust the controller run times seasonally to meet the planting needs. Conduct a monthly inspection of the system and operate each valve to not any dfii deficiencies. i On slope conditions, water for shorter but more frequent applications to allow the water to soak into the ground rather than fun off. In normal areas, program the controller to run longer by less often to allow for deep penetration into the soil allow for better root growth. 4

Landscape Maintenance Operational Factors Schedule your watering in the early morning hours so the

Mulch l planting l i beds and refresh as needed to maintain a minimum of 2 cover Aerate your lawns when

Encourage landscape professionals to attend water conservation seminars sponsored by LICH, IA, Planet,

Water in the early morning Maintain the system properly Sprinklers Adjust sprinkler height Adjust arcs

5 Landscape Maintenance Operational Factors Schedule your watering in the early morning hours so the system turns off before the sun rises and the winds increase. Mulch l planting l i beds and refresh as needed to maintain a minimum of 2 cover Aerate your lawns when compaction occurs. Encourage landscape professionals to attend water conservation seminars sponsored by LICH, IA, Planet, AWWA, ASLA or others. Use a Maintenance Contractor with water conservation expertise! Water in the early morning Maintain the system properly Sprinklers Adjust sprinkler height Adjust arcs Adjust Controllers As a minimum adjust run times Seasonally or better yet change out to a Smart Controller MOST IMPORTANT Supporting Hawaii s Landscape Industry For over 25 years ENCOURAGE WATER CONSERVATION ON YOUR PROJECTS MAHALO! 5

Kevin A. Rudat CID,CIC,CLIA EPA Water Sense Partner. IANE President IANE Education Chairman

Kevin A. Rudat CID,CIC,CLIA EPA Water Sense Partner IANE President IANE Education Chairman www.irrigationassociationne.org www.irrigation.org 1 Smart Irrigation Components How we can conserve water while