How to calculate parasitic loss in my plumbing system.

[rjjr1963]

I need to have about 600 gph delivered to DT tank. I'm going to use an a/c external pump like the Iwaki.

The pump will be plumed to a 4 position manifold feeding a carbon, GFO and spare media container. It will also feed the refugium which sits beside the DT. There will be a number of twists and turns. The manifold and accessories will be in a utility room right behind DT. I plan on using flex pvc to minimize the number of sharp turns.


Whit that in mind I'll need about 900 gph. The question is how many gph am I going to loose to head pressure and parasitic loss.

 

[Dkuhlmann]

Personally I'd figure 10%-20% the higher to be on the safe side, but likely 10% would cover it.

 

[homer1475]

RC has a calculator on the main page for head loss and plumbing loss. It asks for vertical run length, horizontal run lengths, any T's, elbows, valves, etc, etc.

http://reefcentral.com/index.php/head-loss-calculator

 

[rjjr1963]

Thanks. That's exactly what I need.