Chasing down bubbles a sump and fuge question

T

TJay

Ok here is a diagram of my sump fuge

A is the feed for the fuge off the return to the main tank on a ball valve
B is the drain from the tank
C is the return bulkhead, I have a 10 inch 1 inch pipe horizontal with slits cut in it to pick up the water.
D is a small built in overflow from the fuge with a 1/2 inch drain heading down to the return area of the sump.

Here is my question. Should the water line at the D be down near the drain or should the water line be near the top of the baffle. To get the water line to set that high I need to turn the flow up pretty high in the fuge, and I always thought flow through the fuge should be as slow as possible.
 
would you not want the water from the fuge to go before the bubble trap, then into the return section? If the water falling from the fuge is too steep, it can cause noise and air bubbles in the main. Re-plumb the fuge to before the bubble trap and it should be fine like that.
 
I wondered about that, I was told to put the fuge return near in the return area so that the water would go right back to the main.
Is there an issue with the pod transfer maybe?
Not sure but I will give that a try.
 
And that is what I have
I run carbon filter floss in the bubble baffles because I use ozone a few hours a day and wanted to prevent it getting back to the main
If I move my fuge return to the other side of the baffles I dont think the pods would make it through the filter floss

I may need to find another place to put the carbon

I have two sand sifting gobies and I populated the fuge with two bottles of acropods last week. I want to insure there is enough activity in the sand to keep them happy. Until the bed gets populated they are eating frozen food and pellets
 
You don't want the refugium draining into the return section. That is your final bubble-free zone. If you can't move it, then have it pour into a bubble tower. That can either be water into a:

1) taller piece of PVC that quietly overflows into the return section. It should only pour down 1" maximum, to avoid any splashing.

2) taller piece of PVC with holes at the bottom, filled with LR rubble. Water weeps out the holes at the base, and all bubbles are trapped in the rubble.
 
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