|MadSci Network: Engineering|
Yes, but very probably the fittings inside your 1/2 inch hose had an inside diameter a little smaller than 1/2 inch. The reduction in flow, due to the smaller dimensions of the fittings, is perhaps not as significant as you might first suspect, because the pressure you are able to get at the end of a long hose is also somewhat dependent upon the diameter of the hose. The water does less work in travelling through a hose with a larger diameter, so that the pressure near the open end of the hose is more dependent upon the diameter of the hose than on the diameter of the fittings at the end. References for this answer are any fluid dynamics textbook. Some high school and most college physics textbooks will also include discussions of the more fundamental aspects of fluid flow through pipes. Thanks for your question. sid
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