Lowman Posted January 7, 2010 Share Posted January 7, 2010 I have 2 3/4" returns and 2 1" drains on my new tank. It is glass so i don't want to drill it. My question is could I use the two returns as closed loop drains and return the water over the back of the tank? I would still use the 1" drains to drain into the sump and plumb the return pump over the back also. Or do any of you folks have a better idea? Quote Link to comment Share on other sites More sharing options...
reef165 Posted January 7, 2010 Share Posted January 7, 2010 I think ya would halfto plump them eather over the overflow to inside the tank or bulkhead the side of the overflow . Ya just cant take the water from inside the overflow because it is also feeding your sump and the combined returns would be to much for the overflows to handle. Quote Link to comment Share on other sites More sharing options...
chewie Posted January 7, 2010 Share Posted January 7, 2010 Or do any of you folks have a better idea? Is this the Tech120? you will have nothing but headaches and microbubbles if you use the overflow to plumb a CL. Unless you were to drill through the overflow, and put bulkheads on the inside of the tank. Then connect to the overflow drains. Pick up a set of Tunzes or Vortechs and call it a day. Quote Link to comment Share on other sites More sharing options...
R-3 Posted January 7, 2010 Share Posted January 7, 2010 Is this the Tech120? you will have nothing but headaches and microbubbles if you use the overflow to plumb a CL. Unless you were to drill through the overflow, and put bulkheads on the inside of the tank. Then connect to the overflow drains. Pick up a set of Tunzes or Vortechs and call it a day. I agree with Jon. Just buy a nice set of Tunzes or Vortechs! Quote Link to comment Share on other sites More sharing options...
andy Posted January 7, 2010 Share Posted January 7, 2010 Yeah, like Jon and Ryan say, closed loop off the overflow is a no-go. I played around with it a while ago and couldn't get the pump to stop cavitating. Microbubbles everywhere. Quote Link to comment Share on other sites More sharing options...
Lowman Posted January 7, 2010 Author Share Posted January 7, 2010 Bummer. I wish I could afford a Vortech. Maybe someday Quote Link to comment Share on other sites More sharing options...
chewie Posted January 7, 2010 Share Posted January 7, 2010 Used Tunze 6100's are selling like hotcakes for around $125-150. Quote Link to comment Share on other sites More sharing options...
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