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Really basic question about bottlenecks and flow
This will greatly help inform the way I plan my hydronic repiping, but it is an embarrassingly stupid question:
Lets say I have a 20 foot section of 3/4 inch pipe. On one end i pump the water into it. In the middle, about 10 feet in, is a one inch length of 3/8 pipe. Now I walk over to the other end of the pipe. Is the flow limited to the flow capacity of a 3/8 inch pipe. In other words, is the flow the same as if the entire 20 foot length was 3/8?
My intuition tells me that the 3/8 bottleneck will limit the flow, but I also know assuming anything is what gets you into trouble. Thank you!