In the market for an HOB overlfow.. Flooding discussion

[Jakegr]

Originally Posted by gobytron

http://www.jlaquatics.com/phpstore/s...t_ID=esh-ofnan

This is exactly what you need.
SET UP PROPERLY, you should NEVER get a break in siphon.

You are fighting the good fight, sir

The only reason HOB overflows have a bad rep is because people use them incorrectly.

[04V10]

What pump would you guys recommend that I put in the sump? It is going to be 3' under the display tank. Would a Mag 250 suffice? Or should I get something a little beefier and use that like a 500 or even 700? I was thinking about putting a T on the outlet of the pump to put back to the refugium section for added flow there.

Thanks for all the great replies guys! I think I will get the Eshopp's model and go from there.

[Jakegr]

Originally Posted by 04V10

What pump would you guys recommend that I put in the sump? It is going to be 3' under the display tank. Would a Mag 250 suffice? Or should I get something a little beefier and use that like a 500 or even 700? I was thinking about putting a T on the outlet of the pump to put back to the refugium section for added flow there.

Thanks for all the great replies guys! I think I will get the Eshopp's model and go from there.

If you are getting the Eshopps 200 GPH HOB overflow, I would get a Mag 350. It puts out 250 - 300 GPH at 3' head, so you will have to use a valve to choke it back. The Mag 250 is a bit weak, and you want to be sure that you can put enough flow through it to prevent air bubbles from building up and breaking the siphon.

Also, put a cover on the overflow box on the inside of the tank to prevent snails from climbing in and breaking the siphon.