FS: Rio Seio 620 Super Flow Pumps

plankton

Premium Member
Bought 2 Seio 620 Super Flow pumps (620 GPH, 2400 LPH) for $37.99 each plus $10.16 shipping, but flow isn't enough for my tank.

Will sell pair for $86.14 or best offer.

410Rio.jpg
 
I have a pair of 1500s in my 75g, you might want to start with those next, I think they are great for that size of SPS tank.....a mixed 210 should be just about right for that pump
 
Thanks. Been looking at the 1100 and 1500. Next task will be figuring out how to take advantage of the swivel mount that comes with them.

Scott
 
I've been looking for an alternative motor for our calcium reactory DIY. What are the dimensions across the top of the motor housing?
 
From specs: 5.5" H x 2.165" W x 2.6" D

However, if you are looking for a motor to drive the reactor then I would not pick this pump for 2 reasons:

1) They are designed to withstand back pressure
2) I don't believe there is a way use this pump 'dry', since the intake is not threaded.
 
Thanks anyway

I just realized the SEIO pumps the opposite direction of the typical powerhead (out the hole in the "bottom"). That won't work for my application.
 
Brian,

I am not sure what you meant that the SEIO pumps the opposite direction of the typical powerhead (out the hole in the "bottom"). The SEIO can be configured in multiple arrangement. In one of the arrangement, I think it's similar to a "typical" powerhead. In other words, you can configure it similar to a Tunze (see diagram below). FWIW - I used to have SEIO 620s in my 55G, and I loved them. They did make noise when initially starting, so you wouldn't want to use it on a wavemaker, but they were incredibly efficient and gave a nice disperse flow (vs concentrated flows in typical powerheads).

powerheads_taam_seio_5.jpg


Minh
 
Hey Minh

What I mean is that typically, the hole that runs parallel to the run of the impeller shaft is the intake and the exaust is perpendicular to the impeller shaft. These pumps are just the opposite. They draw water in from the vents on the side and pump it out the hole that runs parallel to the impeller shaft.

This design would have worked well with the previous design of our DIY calcium reactor. It doesn't work well with the current design. Although, if the pump was at the bottom of the reactor, under the media, this pump would work. You got me thinking.

I'll bet that impreller is more plankton friendly that the traditional design.
 
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