50 Gallon Closed Loop help

[55Reef]

I need some advice/opinions on a closed loop design for my 50 Gal.(36"x15"x18") I'm going to be re-working my tank. Remove the sandbed, change my return setup etc. So while the tank is down I plan on adding a closed loop to it. The tank is a mixed reef. SPS, LPS and some softies. Currently for flow I'm using 3 MJ 1200's and a Mag 7 for a return. comes to approx 25x-26x turnover. I'd like to keep the flow roughly the same.

Here's the plan:

I'm going to drill the tank for the bulkheads. 1 1-1/2" intake, with 4 1" returns. 2 of the returns will enter the back of the tank through 1" bulkheads. the other 2 will go over the top of the tank towards the front. I will not be using bulkheads for these 2 returns. All outlets will have loc-line.
The pump I've been looking at is the Panworld. Model 50PX-X
1110gph max flow, 13 foot max head pressure, 90 watts,1" MPT in/out.

Now the questions:

Will this pump provide enough flow?
What size loc-line? 1/2" 3/4"?

Any other comments and suggestions are welcome!

Thanks!

[55Reef]

Somebody?:D

[55Reef]

One more time.

[wetWolger]

everything sounds fine to me....as far as what lockline size to use it sorta depends on what kind of flow your trying to make. Personally on my 120 I have 3/4in on the sump return, and a 3/4in CL output that moves about 1000gph. And then I have 4 outlets that point down that are 1/2in (part of the closed loop powered by another pump). The 1/2in will give a sharper, stronger flow. Not something you want put directly on a coral, but good to hit exact spots. So you need to decide how you want your flow. Hope that offers some help.