Who uses sea swirls and what are your opinions of them. Im thinking of useing two 3/4" sea swirls as two extra returns for a closed loop system. If I use them they will be mounted on the eurobracing as it is drilled. Good Idea/Bad Idea. They will be powered by a Sequence 3200 pump and be the 7th and 8th 3/4" returns. Im hoping that they will be the only equiptment in tank. Let me know please.