Plumbing question with manifold

[christwendt]

So I’m setting up my plumbing for new tank. I plan to run two return pumps. One going straight to tank and one that will feed the manifold which will have a carbon/gfo dual reactor, a calcium reactor down the road, and one left empty for future use if needed. The return on the 100 IM ext is 3/4th so the manifold is 3/4th plumbing. I’m using two COR 15 apex return pumps. Did I set this manifold up right and does my plan sound okay? I attached arrows showing which way the flow arrows are on the ball valves.

 

[40g Nano]

Where do the pumps feed from? Water would take the easiest path it can do you probably won’t get much pressure to the ball valves

 

[40g Nano]

Unless the pumps feed on both ends of it, I think that could work but lower pressure on the middle

 

[christwendt]

Where do the pumps feed from? Water would take the easiest path it can do you probably won’t get much pressure to the ball valves

I kind of get what you are saying. I was planning to feed the pumps from the sump. So there will be one return pump feeding to the manifolds then to the tank. Did I do this wrong then? You are saying no water will get to the ball valves ? How do people run manifolds then. I’m trying to avoid having extra pumps to my carbon reactor and calcium reactor by just using the return pumps.

 

[40g Nano]

I kind of get what you are saying. I was planning to feed the pumps from the sump. So there will be one return pump feeding to the manifolds then to the tank. Did I do this wrong then? You are saying no water will get to the ball valves ? How do people run manifolds then. I’m trying to avoid having extra pumps to my carbon reactor and calcium reactor by just using the return pumps.

Do the pumps go on either side of the plumbing shown?

 

[christwendt]

Do the pumps go on either side of the plumbing shown?

Does this pic help? The empty line is where I will be running a second return pump. I have two return nozzles on rank. One on right and one on left.

 

[christwendt]

Do the pumps go on either side of the plumbing shown?

The pump will be on one side of the manifold. So it goes from sump to manifold to left return nozzle. Then another pump on sump goes from sump straight to tank.

 

[40g Nano]

So another return on the left side, right?

 

[40g Nano]

The pump will be on one side of the manifold. So it goes from sump to manifold to left return nozzle. Then another pump on sump goes from sump straight to tank.

Ohhhhh
I think you might want to put a ball valve past everything else on the return line

 

[40g Nano]

maybe there

 

[40g Nano]

It’s so you can limit flow on return, and more water can get to the other equipment

 

[christwendt]

Ohhhhh
I think you might want to put a ball valve past everything else on the return line

Can you explain why?

maybe there

 

[40g Nano]

It’s so you can limit flow on return, and more water can get to the other equipment

Here

 

[christwendt]

It’s so you can limit flow on return, and more water can get to the other equipment

That makes sense. Do you think I need to change from 3/4th pvc ? Or should I be okay using 3/4th. The tank comes with 3/4th return nozzles on tank.

 

[40g Nano]

I’m not an expert on this stuff though so you might want some other opinions

 

[christwendt]

It’s so you can limit flow on return, and more water can get to the other equipment

Thanks so much btw. I get what you are saying. I’ll add a ball valve after so I can have less flow to that and more going to equipment.

 

[40g Nano]

That makes sense. Do you think I need to change from 3/4th pvc ? Or should I be okay using 3/4th. The tank comes with 3/4th return nozzles on tank.

I think 3/4 will be fine

 

[christwendt]

I’m not an expert on this stuff though so you might want some other opinions

Sounds good I’ll wait for some others to chime in. That’s why I’m asking before I glue everything

 

[40g Nano]

Yeah good idea

 

[JoshH]

I like to keep my manifold pump off of a return line entirely. If you are dead set on running it as a return as well. As @40g Nano suggests I would place a ball valve at the end on the return line itself to create back pressure to help feed the reactors.