Sump Plumbing Question

[Johnnymong]

I am changing my Sump to a Trigger Platinum26 with automatic fleece roller. My question is on the return line, the connection to the pipe feeding the tank, I see most people make a U loop from the pipe from the pump to the Pipe feeding the tank. Is there a reason to make basically a loop( like a drip loop for electrical wire) on the return pipe?

 

[Reefing Madness]

 

[rfgonzo]

I can't answer your question cuz I've never made a U loop unless I had to get around something to get to the bulkhead.
I just wanted to tell you, you did a great job on the setup. To bad it won't stay that clean for long.

 

[a4edwin]

Looks like he did it because he had to if you look at the pic the union is right behind the 90 so he couldn’t tie into it there

 

[Jaebster]

Looks like it might be a flow meter or some sort of value that needed to be placed so thus the U loop was needed.

 

[a4edwin]

What jaebster said looks like a ghl flow meter