A properly designed irrigation system can: a. save water, time, and money b. save installation time c. cost more d. last longer a. save water, time, and money Basic irrigation dates back: a. hundreds of years b. since Rain Bird was founded c. thousands of years d. seventy-five years c. thousands of years The impact sprinkler head was introduced by Rain Bird in: a. 1933 b. 1985 c. 1890 d. 1910 a. 1933 Landscape irrigation, as we know it, has been around since: a. the 1930's b. since the development of PVC pipe c. the beginning of time d. the turn of the 20th century d. the turn of the 20th century The issue of top priority in irrigation today is: a. how to sell more systems in our present economy b. new technology in back flow protection c. water conservation d. city and state regulations on licensing