Plumbing Experts, critique my plumbing idea...
 

According to my math my 1.5" drain will flow 1325gph into my sump, I am using a QuietOne 9000 which flows 2328gph with zero head. Since I have a combined 7ft of head, 12 90*s, and a reducer from 1.5" to 1" this pump will flow right around 1300gph with the way I have it plumbed. The QuietOne 9000 comes with a 1.5" fitting for the output which will be plumbed into a 1.5" pipe and then tees off to to 1" pipes. Should I have them tee off to two 3.4" pipes to keep a 1.5" the total diameter?

Please critique me and tell me yes, no hell no and even feel free to say I'm crazy :)

[img]http://www.upitall.com/Private/u/3/232/2946

No, bigger returns into the tank are better so that you have a wider, less forceful flow pattern.

That is a lot of flow through a sump... 3-5 times the system volume is recommended for a reason;) as you increase this rate through the sump you need to increase the width and/or length of the sump to avoid microbubble issues and upsize the skimmer proportionately in order to maintain a per-pass efficiency. As you start getting higher and higher rates through the sump the overall system efficiency begins to decrease and your electric bill begins to increase;)

Ok so I should only shoot for 360-600gph return?

I would shoot toward the 600... Easier to dial things back. It is just a general rule of thumb. On mine I found 7-8x is the sweet spot with the equipment I have. More and my skimmate decreases, less and I get algae on the glass quicker...

Ok thanks hop, maybe I'll close off 2 of the holes or setup a closed loop.

See now your talkin;)

A dart on a 4-way!

Guess I have some connectors to return to Home Depot! lol