question on frag tank

[Budman's Corals]

I got a new frag tank,the problem im seeing now is the extra water flow that will feed back to my 120 sump if the power goes off, I have it all plumbed into 1 using the display tanks mag18 to feed the frag tank,What can be done in case the power goes out and water has to flow back.is there anything that can be done?

 

[totion]

Do you have a siphon break drilled in your return line?

 

[Psyko]

You can try positioning the return nozzles in the display and the frag tank to point higher so it doesn't siphon as much out. Or try a check valve on the return pump. (although can be prone to wear and can give a false sense of security)

Also can try raising the drain pipes in the overflow boxes so less is drained out of the tanks as well.

Hth

 

[Budman's Corals]

Wouldn't all the water after have to drain below the cut out though...even if the return lock line is high above the full mark

 

[Budman's Corals]

Also on the Dorsal does that piece go up or point down the opening