Water flow from Tank B to Tank C sizing questions

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SUMMARY

The discussion focuses on optimizing water flow from Tank B to Tank C in a three-tank system. The current setup utilizes 1" bulkhead fittings and flex pipes, which are limiting the flow rate. Participants confirm that increasing the size of the bulkhead fittings and transfer pipes will enhance the flow between the tanks, allowing them to balance their water levels more efficiently. This adjustment is essential for maintaining effective gravity-fed water movement in the system.

PREREQUISITES
  • Understanding of fluid dynamics principles
  • Knowledge of bulkhead fittings and their sizing
  • Familiarity with gravity-fed water systems
  • Experience with plumbing materials and installation techniques
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  • Research the effects of pipe diameter on flow rates in fluid systems
  • Learn about the installation and advantages of larger bulkhead fittings
  • Explore gravity flow calculations for tank systems
  • Investigate pump selection criteria for optimal water movement
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Engineers, plumbers, and hobbyists involved in water management systems, particularly those working with aquaponics or similar setups requiring efficient water flow between tanks.

nudgemar
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Brief description: I have a three tank system (A,B,C). Tank A is fitted with stand pipes with the over flow flowing down and then up through the bottom of a 1" bulkhead fitting and into Tank B. Tank B is approx. 12' x 2' x 12". At the end of Tank B is another 1" bulkhead fitting with the exit water going through 1" flex pipe down to the ground (2.5'), along the ground a distance of 5' and connected to the bottom side of a 1" bulkhead in Tank C. Tank B and C are the same level off the ground. The opposite end of Tank C has a bulkhead fitting with the exit water going down to the ground over to a pump and pumped back into Tank A.

I'd like to use just one pump and gravity to move the water from Tank A to B to C. Water leaving Tank C going back to Tank A doesn't seem to be a problem (other than I have to throttle back the flow). And Water flow from Tank A to Tank B seems to be ok. The issue is getting the water from Tank B to Tank C.

How can I increase the flow from Tank B to Tank C? Would a larger bulkhead fitting and transfer pipe work? I would like to use the principle that the water levels itself out between tanks kept at the same height.

Can someone point me in the right direction?
 
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nudgemar said:
How can I increase the flow from Tank B to Tank C? Would a larger bulkhead fitting and transfer pipe work? I would like to use the principle that the water levels itself out between tanks kept at the same height.
Yes, if you increase the size of bulkheads and pipes, C and B will balance their levels more quickly.
 

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