Lawn irrigation basics
Most lawn irrigation systems provide one watering per week by dividing it into three sessions. Understanding your yard's area helps determine water usage. Learn about the impact of water rates and how to lower weekly costs through efficient watering practices. Discover the benefits of installing rain sensors and how they can help reduce water bills significantly.
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Presentation Transcript
Lawn irrigation basics Most lawn irrigation systems set to give 1 water/week by watering 3 times in a week with 20 minutes per section. 0.625 gallons of water per square foot will provide 1 water/week. Measure the length and width of the yard being watered to get AREA watered. R-60 house has 1800 square foot front lawn; uses 1,125 gallons/wk R-80 house has 2400 square foot front lawn; uses 1,500 gallons/wk R-100 house has 4000 square foot front lawn; uses 2,500 gallons/wk IF back yard and one side yard are also sprinklered, DOUBLE the gallons.
Water rates are based on 3 month periods Water usage is lowest for Oct/Nov/Dec and Jan/Feb/Mar periods so rate is usually the lowest or second lowest on the billing chart. The Apr/May/Jun has higher usage but the REAL IMPACT PERIOD is the period of Jul/Aug/Sept. Water rates for the current year are shown below: Under 15,000 gallons for the 3 months is $2.95/1000 gallons 15,001 - 30,000 is $3.37 30,001 - 60,000 is $4.03 Over 60,000 is $4.95
Weekly cost to water your lawns Higher usage puts homeowner is HIGHER RATE category R-60 uses 14,625 gallons for front only for July-Sept or $3.79/wk and a higher 29,250 gallons (all lawns) at the next higher rate for (4.03/3.37)(2)(3.79) = $9.10 all lawns/wk R-80 uses 19,500 gallons for $5.06/wk front only; $12.14/wk all lawns/wk R-100 uses 32,500 gallons for $13.10/wk front only; (4.95/4.03)(2)(13.10); $32.18 all lawns/wk! HOW CAN YOU PAY LESS? Water less lawn OR water less frequently. Either strategy keeps you in the LOWER RATE category.
A SIMPLE FIX for high water bills is BUY a Rain sensor that shuts off the system when there is rain Inexpensive rain sensors cost $20.95 (Rain Bird model on Amazon; $20.97 Orbit model at Lowes; $28.99 Hunter model on Amazon) More expensive ones with wireless sensors cost $79.79 (Rain Bird on Amazon; $74.76 for Hunter on Amazon). Spoke with two professional sprinkler installers in town who said they can install for $60 - $80 but any semi-handy homeowner can install in under 10 minutes. Rain sensors typically reduce water bills by 30% and for most homeowners will PAY FOR THEMSELVES in late savings after 3 - 7 weeks of no watering.
