I thought I would do a post on the flow in my 300g DD tank using an Oceans Motions 4way. The technology isn't new but has been squashed but more plug-and-play technoloigies.
I had votech mp40's on my previous 120g and I didn't like the whirr. A huge goal with my 300g tank with garage sump was dead silence and low in-tank profile. I choose the Oceans motions for $499.
The basic concept of the OM is you run it inline with return or closed loop pumps. The device has an internal barrel that it rotated at 1rpm via an electric motor. There are different barrel designs providing different flow patterns to 4 outlets. I chose version 1, seen here http://www.oceansmotions.com/store/...id=32&osCsid=6bb7e31e70415713a973210fcbe900f2
I designed my rockscape to work with the OM rather then run countless numbers of nozzels and locline inside the tank. I also made flow eductors that were covered by rock.
anyway, here come the pics. I will include video at the end for better explantion.
closed loop plumbing. far left and right. 1 1/2 inch bulkheads t'd off to a single 2 inch and out the the garage and reeflow barracuda.

The OM device. the 4 outlets terminate in the bottom 4 corners of the DT.

View of sump room. closed loop and OM seen in background along with rest of tank plumbing.

Plumbing under the tank. I chose flex-pvc to limit the amount of flow-limiting sharp angles.

flow eductors seen left and right rear, nozzles front left and right. the rock work begins.




note how there is plenty of room behind rocks. return flow also directed at bare bottom behind rock. will be front only sand.


end result and tank at 6 months.


video of OM test with water half full. https://www.youtube.com/watch?v=aZ8Im7bE1hE
video of hair algae showing flow patterns created by OM. https://www.youtube.com/watch?v=vikpSBAH3w0
video of garage sump and how plumbing goes through wall. https://www.youtube.com/watch?v=gOwGMz6nkqc
Thanks for reading!
Kevin.
I had votech mp40's on my previous 120g and I didn't like the whirr. A huge goal with my 300g tank with garage sump was dead silence and low in-tank profile. I choose the Oceans motions for $499.
The basic concept of the OM is you run it inline with return or closed loop pumps. The device has an internal barrel that it rotated at 1rpm via an electric motor. There are different barrel designs providing different flow patterns to 4 outlets. I chose version 1, seen here http://www.oceansmotions.com/store/...id=32&osCsid=6bb7e31e70415713a973210fcbe900f2
I designed my rockscape to work with the OM rather then run countless numbers of nozzels and locline inside the tank. I also made flow eductors that were covered by rock.
anyway, here come the pics. I will include video at the end for better explantion.
closed loop plumbing. far left and right. 1 1/2 inch bulkheads t'd off to a single 2 inch and out the the garage and reeflow barracuda.

The OM device. the 4 outlets terminate in the bottom 4 corners of the DT.

View of sump room. closed loop and OM seen in background along with rest of tank plumbing.

Plumbing under the tank. I chose flex-pvc to limit the amount of flow-limiting sharp angles.

flow eductors seen left and right rear, nozzles front left and right. the rock work begins.




note how there is plenty of room behind rocks. return flow also directed at bare bottom behind rock. will be front only sand.


end result and tank at 6 months.


video of OM test with water half full. https://www.youtube.com/watch?v=aZ8Im7bE1hE
video of hair algae showing flow patterns created by OM. https://www.youtube.com/watch?v=vikpSBAH3w0
video of garage sump and how plumbing goes through wall. https://www.youtube.com/watch?v=gOwGMz6nkqc
Thanks for reading!
Kevin.









