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1 % TKa. | Las Yegas, Nev*, Deo* 14, 1949 To All Concerned! A little drop of water, a little grain of sand, makes a mighty ooean and a glorious land! Use all the water you want but do not waste it - a little leak will sink a big ship* A oubie foot of water contains 7*48 gallons and weighs 62*5 pounds* A gallon of water, U. S. Standard, contains £#31 cubic inches, or 0*13368 cubio feet and weighs 8*33 pounds* A barrel of water contains 31*5 U,S. gallons* With 40 to 50 pounds pressure per square inch a 3/4 inch garden hose will run 8 gallon per minute without spray and 4 gallons per minute with spray on* It requires 8 gallons of water to sprinkle 100 square feet of lawn and 16 to 20 gallons will soak it thoroughly* An ordinary lavatory is filled by 1,5 gallons* An average bath tub is filled by 30 gallons* It requires 7 to 10 gallons to flush a toilet* A horse drinks 5 to 10 gallons per day* Cattle drink 7 to 12 gallons per day* Hogs drink 2 to 2*5 gallons per day* Sheep drink 1 to 2 gallons per day* One pound pressure per square inoh equals the pressure of a column of water 2*31 feet high* A oolumn of water one foot high produces a pressure of 0*433 pounds per square inoh* The mean pressure of the atmosphere at sea level equals 14*7 pounds per square inch with perfect vacuum, this will sustain a column of water 33*9 feet high, or a oolumn of mercury 29*9 inches high* Be careful of your freezing pipes, tubes and valves, water expands about one twelfth of its bulk in freezing and when rigidly confined has an expansive forces estimated at 30,000 pounds per square inch* Each nominal horse power of a boiler requires 7*5 U*S* gallons of water per hour* One square foot of grate surface requires about 12 pounds of coal per hour*