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A good general guideline for watering a garden is that you need an inch of water per week, either by rain or watering; in arid climates, it is double that. In hot weather, vegetables need even more water, up to about 7 inch per week extra for every 10 degrees that the average temperature is above 60 degrees. By definition, the average temperature is the daytime high plus nighttime low, divided by 2. So, if the high is 92 and the low is 73, the average is 92 + 73, divided by 2. . Blowers had a garden that was 60ft wide x 20 ft long at his old house and needed to keep the plants watered in July in Tucson when the high temperature is 104F and the low is 72 "F. His family used an irrigation system since there just isn't enough rain in July. The water main that delivers water to the house is 8 inches in diameter, made of commercial steel, and the water flows 100 feet from main city distribution system through this pipe before it crosses onto that house's lot. The pipe to the house that carries the flow from the water main is 1 inches in diameter (i.d.). The flow from the water main goes 45 feet through this drawn tubing before bending at 90 degrees and rising 3 feet where it bends another 90 degrees and then tees into the house, passing straight through the tee junction towards the back of the yard. The flow from the T connects through 5 feet of the same type of pipe to a junction where it splits into 5 tubes that are cach 3 mm in diameter. The water flows 55 feet through this polyethylene tubing and is delivered to the garden. What does the pressure, in psig, of main distribution system have to be to be able to deliver the required amount of water