want to build a closed loop manifold

I have a closed loop on my 180 with a manifold like Golf66 drew, except i have 1" outlets. I believe the 1/2'' outlets would not be large enough, i do not however have it hooked into a OM, so the flow i get is not sufficient for my SPS tank, i supplement my flow with 2 Tunze 6100's.
 
if you use an OM I would go with one inch. if you are going to have 6 outlets on one pump going all the time I would go with 1/2 for volocity.
 
so if I go 6 outlet @ 1"... I use 1/2" outlets.... If I want more flow can I up that to 1.5" with 1" outlets??? and which pump should I go with... a dart??

If I go with the ocean motion 4 I can have 4 outlets and depending on the model I can have it oscilating... giving me a wavemaker....

I think I may just go with the ocean motion...

roger.... u said that u are experienced with the ocean motion.... does it need regular maintenace like a SCWD?? i.e. does it get stuck when oscilarting like a SCWD??

you also stated...

"Well if you want no dead spots you need to close loop the tank and drill out all your inlets and not use the manifold you are looking at."

I know that going with a closed loop is the way to go but why do I have to drill my inlets??? is there a way to eliminate dead spots without drilling the inlets?
 
no the OM does not get stuck or need regular cleaning. it works perfect...

Well if you drill the tank you can put the inlets lower in the tank. the dead spots are aways in corners low in the tank. if you are moving water only in the top then you may still have those dead spots

yes the dart!!!
 
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