will this increase turbulence in tank?

[ctreefer]

I just did a test of my new plumbing last night and discovered there wasn't as much flow as I was anticipating.

I've got an ocean runner 3500 (900gph) on a closed loop with 3 3/4" outlets into the tank (each controlled with a ball valve).

If I turn those 3/4" outlets into 1/2" will this create more flow for better turbulence? I know it will increase the velocity of the water coming out of the pipe, but not sure if this relates to more turbulence in the water column. I'm going BB on a 29gal and I want to make sure that the bottom remains bare if you know what I mean....

 

[danferd2002]

add a seio or two

 

[ctreefer]

danferd, That's going to be a last resort. My intent on this tank has been to keep as much of the equipment out of the tank as possible. Right now I want to see if there is a solution with what I'm currently running.

thanks

 

[opihi]

it would create more velocity meaning it will have have a longer reach and create more turbulence. i don't know if it would mean "more flow" though... i would think it's less.

a comparison would be a Maxi Jet's flow compared to a SEIO-- the Maxi Jet seems stronger because it's a more direct, linear flow, but the SEIO actually moves more water.

 

[barrysalt]

As long as the back pressure on the pump doesn't cause a problem, going with smaller 1/2" nozzles should create a stronger stream (more turbulence). I recently built a closed loop system using 3/4" pvc pipe, but 1/2" nozzles (all from Home Depot) and it works fine with a Mag7 pump in a lower sump.

 

[JER-Z]

<a href=showthread.php?s=&postid=6513339#post6513339 target=_blank>Originally posted</a> by opihi
it would create more velocity meaning it will have have a longer reach and create more turbulence. i don't know if it would mean "more flow" though... i would think it's less.

slightly less flow coming out of a smaller opening at a greater velocity...

the additional head loss may cause a decreased flow depending on your pump...

an eductor would do a better job for you, but you will need a pressure rated pump...