I've got a creek that has about a 10 foot drop over about 120 feet of run. Creek flattens out upstream and can give another 2 feet of drop over an additional 40-50 feet. It is a good sized creek and flows quite well all year. Tested the water flow through a pipe by submerging a 20 foot section of 1 1/4" flexible pipe over a short drop of about 3 feet. I measured water flow out of it at between 4 and 4.5 gallons per minute. It seemed like a really slow flow out of the pipe compared to the rushing stream it was in. I plan on pumping the water through about 250 feet of pipe to a vertical height of around 75 feet above the pump.
My questions are:
1. How much would water flow increase through a 2" pipe instead of the 1 1/4 like I tested with?
2. Would a longer pipe, thus a higher head and pressure, result in a higher rate of flow?
3. Is simply submerging the pipe end in the creek good enough, or do I need to build a small enclosure to draw from, like having my drive pipe start in a submerged barrel of water upstream (to provide calm, standing water to draw from)?
Given the above information, what size drive and delivery pipes should I use, and how large of a pressure chamber would I need? Any advice or resources to look at would be greatly appreciated.
Last edited by TDFbound; Today at 07:39 PM.. Reason: title change for clarity
Ram Pump for water source
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