Note the illustration where almost twice as much water flows at 150 lbs. than 50 lbs., most of which is wasted. Moderate savings would result if your supply pressure was 65 lbs. However, even at this lower pressure, savings with a regulator would be 20%.
1 Tree size: American linden grows to 60 to 80 feet tall with a spread of one-half to two-thirds the height at a medium rate. Soil condition and fertility strongly influence height and rate of growth.  Flower and fruit: Clusters of small, fragrant, pale yellow flowers hang midway from a long, leafy bract.
Trees rated as fast growing were at least 25 feet tall after 10 years. These included the American Elm (Ulmus americana), Silver Maple (Acer saccharinum), and the Sycamore (Platanus occidentalis). Moderately fast growing trees measured 18 to 25 feet tall.