My New 72"x20"x20" Tank Build

[banditpowdercoat]

Originally Posted by mark

Can't say nothing about the Herbie as but to listen to Untamed as he's experienced with running one.

For the return you should be able to reduce pipe diameter one size to make a little more manageable after the top Tee, build a manifold (such as like here) to even out flow and with multiple outlet not have a great loss.
RC calculator might be a guide.

Ya, you can reduce the loop pipe diam from what your vertical lift pipe diam is after a T. Just like in drains, you cna go down 1 pipe size when using 2 pipes. So, 2". you can go to 1.75 or 1.5 on a closed loop manifold. Acctually, you can reduce the size after every T in the manifold. As long as they are even on each side of the main inlet T. Remember, your loosing GPH flow in the manifold after every tank outlet, so no need for the whole manifold to be the same size as the inlet. There will be a point in the manifold where the water will acctually be still, where water form the left and rigth sides meet, and basically stop. I did mine with a outlet in the center, where I belive the water will meet, so hopefully to not get stagnent section of the manifold. Weather it worked or not, that remains to be seen

Also, if your pump has a 1.5" outlet, you may be better off to keep the rise pipe form sump to tank that size. Increasing the vertical pipe to larger will add more water in the vertical colum, thus more weight. More weight the pump has to lift, the more head pressure the pump will see, the less GPH it will flow. On Horizontal, and bends, larger is better, but not uphill. Just ask any Firefighter. I'd much rather haul the 1.5" hose up 3 storys than the 2.5"

Just changing the pipe pump outlet pipe to 2" for the bulkhead will be fine, and I think, would be the best bet