Nathan, long time no sqeak, hope your well.
Just wondered if you could answer a little question for me. If you look at the picture above you will see the overflow set up of the left side of your reef.
My question is regarding the flexy tube in the middle of the overflow box. Is that the inlet that feeds the outlet to its right hand side for the Sea Swirls?
If so, could you answer me this, because ive asked quite a few people an no-one can answer me.
Why does the closed loop circulation line take water from a bulkhead in the side of the overflow box, and not from behind the overflow?
Ill make this clear becasue i think people have been confused by my question before. Why doesn't the closed loop feed the sea swirls from a simple strainer/bulkhead in the base of the inside of the overflow box?
Because as far as i can see your drawing water from the closed loop directly from the main tank.
My plans for a closed loop, durso overflow set up would mean that the water for the loops would actually have to come over the top of the overflow. And not through the side of it as i presume it does in yours?
Its allways puzzled me, and im sure theres a reason because ive never seen one set up as i describe. They allways feed the closed loop through the side of the tank, sometimes comeing through the overflow like yours does. But never feeding the closed loop from inside the overflow box.
I hope you understand what im saying, and im stumped for a reason why it couldn't be done the way i suggest?
Oh, BTW, i love the additional closed loop outlets going allong the back of the tank. Great idea, i might have to pinch that