Overflow, Return Pump, Sump

[Schgred]

I am looking to add a 10 gallon sump to my 37 gallon reef. I won't be able to drill the tank so I'm looking at an overflow box. I've seen cpr, rapids pro, lifereef, and eshopps overflow boxes. I'm leaning toward eshopps because of cost.

For a 37 gallon tank and 10 gallon sump what size overflow would you recommend and what return pump?

What can be done to prevent the siphon from failing on one of these setups?

Any help is appreciated.

 

[Kimlafeiet]

While I have no advice for you.....I am in the exact same boat, so I would be interested to see what peoples responses are. I also have a 37g tank.
I myself am leaning toward the lifereef if I can find one. Have you found any online? Wanna share the link if so?

 

[Race37]

Look up DIY PVC overflow on YouTube. They do work.

 

[Schgred]

Lifereef.com is where they are sold.

 

[Terrance]

I like the new RLSS durso overflow. I will probably buy it in the future if drilling is not an option