Seio`s Multicontroller

<a href=showthread.php?s=&postid=7125160#post7125160 target=_blank>Originally posted</a> by Timbo
... You really should measure the flow for closer to 10 seconds ...

I am picturing the size of the bag needed to take the output of the maxi-stream mod on a 1200 for 10 seconds - very large bag. :D
 
I've measured bigger pumps using this method then maxi mods, you don't need as big a bag as you think. A standard trash bag will work, the tall ones, not the HUGE ones. 3000gph = ~.83 gallons per second, so for a 10s test you'll need a bag that is ~10gal.

There shouldn't be much back pressure on the pump if you don't fill the bag up all the way. Make sure you only fill it to ~70% capacity or you could very well be introducing back pressure. Also, make sure you evacuate the air from it before starting.

Siphon the contents of the bag into another container where you can then measure or weigh the water, to determine the actual volume pumped.

Anyway, enough of this because I do agree with you guys that this thread should be kept on topic.
 
I have a few SEIOs, the 620, 820, 1100, and a 1500. I plug them in SxS with the MJ mods (or my aquaclear mods) and get an idea based on that. Usually the differences are large enough to easily tell...or at least give an estimate something like 'this Aquaclear 10 with a nikko 3-blade prop does as least as much flow as a SEIO 620, but not quite an 820, and with only 3.3 watts according to my meter'. The garbage bag test would be nice, but that would require the space which last I checked...my tanks dont have. The garbage bag test is good however, if done multiple times over a long enough time sample. There is no 'head-pressure' as both sides of the bag are submerged.


The only way I have thought of being accurate about testing these stream pumps would be by measuring the velocity of the output x the area of the output. Using an underwater version of what meteorologists use to measure wind speed, then calculating the are of the output nozzle, we could have a calculation.

As for being able to outperform a SEIO, sure. Tunze, maybe a bit harder, but still capable. Notice how Tunzes move more with even less wattage than a SEIO. Thats because SEIOs dont use a true propeller design, Tunzes do. SEIOs use a hybrid corkscrew/impeller design. Its so that fish cant swim in the motor if they should ever turn off. With the Tunzes, the idea is that they never fully turn off...you simply turn down their flow enough to leave them running yet the flow goes down to 30% thanks to their DC motors. SEIOs have 4-pole AC motors.

Hey, if I can outperform a SEIO 620 with a Aquaclear 10 (4.5 watts normally) and a cheap 3-blade racing prop in a 10 second mod...the sky is the limit.

I put dual 2.3" props on a Aquaclear 5000/901/110 series, and the results were up there with a Tunze 6200...maybe more. After I put dual 3" props to put on there...I bet I can outdo the Tunze at the same 55 watts.
 
Marine Depot will have them. May be pre-order now.
I heard either by the end of the month or some time next month.
 
<a href=showthread.php?s=&postid=7036102#post7036102 target=_blank>Originally posted</a> by dhnguyen
But ya know that controller would go nicely with a more reliable pump like a maxijet-mod perhaps? :D

I too am interested on its price tag.

Exactly what I was thinking.
 
seio controller

seio controller

I called Marine depot today, The seio controller will be out in 4 weeks from today, they are not taking orders at this time though
I spoke to customer service thts where I got the info
 
seio controller

seio controller

No price as of yet but he did say that they had a meeting (today)on 4/11/06 and were told only that it will be there in 4 wks.I asked several questions and that was all I could get ...a release date. Also ,I'm new to this forum and I have read previous posts for and against the seio pumps I can only give my opinion...Best thing since sliced bread.. have never had a problem with them, I have 4.. for the price they cant be beat.
 
I read threw 3/4 of these posts and , it's just my 2 cents but these posts are just about as good as watching South park.
and about as useful.
lol. and I agree dhnguyen you need to get your finger out of your nose....lol.
I love my Sieos.
but those Maxi-jet mods look awesome too.
 
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