How to plumb a manifold?

[PegasisR]

I want to plumb a manifold but dont know where to start. I will be running a uv with a 1.5" inlet/outlet, flow sensor(not sure which size) but im not sure where to go from there in terms of valve size and such and config. Pictures and videos showing "how to" would be much appreciated! Thank you :)

 

[Amado]

This is what I have. From left to right
The 1st line goes to the main tank.
The 2nd line to a frag tank.
The 3 line a carbon reactor
The 4 line frag tank
The 5 line right now is for water change but if I need to add another frag tank that’s the line I would use. You could also use that 5 line for a skimmer or refugium.

 

[PegasisR]

This is what I have. From left to right
The 1st line goes to the main tank.
The 2nd line to a frag tank.
The 3 line a carbon reactor
The 4 line frag tank
The 5 line right now is for water change but if I need to add another frag tank that’s the line I would use. You could also use that 5 line for a skimmer or refugium.

What would you recommend in terms of gate valve inches and piping inches, if that makes sense?

 

[Quantum_Reefer]

This is what I have. From left to right
The 1st line goes to the main tank.
The 2nd line to a frag tank.
The 3 line a carbon reactor
The 4 line frag tank
The 5 line right now is for water change but if I need to add another frag tank that’s the line I would use. You could also use that 5 line for a skimmer or refugium.

Nice! Never really knew how they went from like 2" pvc down to RO lines. Not anymore :)

 

[Amado]

What would you recommend in terms of gate valve inches and piping inches, if that makes sense?

I know nothing about plumbing. The only thing I know that is true is is use the biggest pipe you can for the manifold.