Ocean Flo Maxijet Mods...

[bureau13]

That's kind of like saying no one has ever made a bad business decision....obviously, that's ridiculous.

One of two things happened...either Marineland never thought about it and so missed the boat, or they DID think about it and made the business decision that they're better served as a business concentrating on larger volume mass-market endeavours. I don't think we really know enough about their operation to say that this isn't a valid decision, although it does seem like they could make some decent money with relatively mild changes to their existing product. Again though...we don't really know enough to do that analysis properly.

jds

 

[Paulairduck]

I LIKE IT

I LIKE IT

I really like the look of the ocean flow mod, the price is a little steep, but this is basically just snap it in and your running, and it can be used on a wavemaker, anything to bring down the price of tunze get's yes vote for me

 

[spykes]

omg for that price you can get a nanostream. maxi jets dont have the torque to spin larger props like a tunze does. I've tested a 1200 maxijet mod againest a tunze 6000 and the tunze beats it hands down.

 

[hahnmeister]

nano streams top out at 1500gph ish for $200, MJ mods are cheaper and some claim they can put out as much as 2200gph. You could also mod a Mag or Eheim if you wanted something larger...

 

[dhnguyen]

<a href=showthread.php?s=&postid=8272525#post8272525 target=_blank>Originally posted</a> by spykes
omg for that price you can get a nanostream. maxi jets dont have the torque to spin larger props like a tunze does. I've tested a 1200 maxijet mod againest a tunze 6000 and the tunze beats it hands down.

A Tunze 6000 beating a MJ1200 mod w/the 3004 Dumas prop (1.75")? Hmm Strange I've seen a side by side test with the Tunze 6080 and MJ1200 before and they were about comparable and supposedly the 6080 puts out more flow than the 6000.... But anyways a Nanostream definitely won't be able to touch the MJ1200 mod in terms of flow.

Agreed though for the price reefdom.com is charging, you might as well buy a nanostream instead.


D.

 

[BLockamon]

Has anyone run the reefdom mod on a wavemaker? They claim that it won't harm the pump and is fully warrantied (course, how long are they going to be around to honor that warranty). Is there any noise on startup?

If these really can run well on a wavemaker, that puts them ahead of the nanostreams. The cheap nanos put out less than half the flow (~660 gph) and can only be switched at 15 min intervals. Not bad at $65, but not great either.

 

[Monti]

Where have you seen that the nano can only be switched on and off at 15 minute intervals? I guess I missed that part. Is that on the controller it comes with or can it only switch at 15 minute intervals no matter what wavemaker you use? Well that might make my choice easier between the nanos and the mjmod... does anyone know anything about the MJ 600 mod they have on Ocean Flo? I've only heard people mention the 1200 and 900, both of which seem like they'd be too much flow in my tank (I run a SSB). How many GPH does the 600 mod do? And I too am curious to see if the ocean flo mods can run well on a wavemaker...

 

[Doni]

BLockamon - I have my 1200 maxijet reefdom mod on a wavemaker (RK2) and it is set to on/off 1min/5min. Yes, it does make a click sound when it kicks on.

 

[dhnguyen]

There is no way unfortunately to make that click sound disappear from the MJ's IME.

Here's the thing though, MJs are cheap so even if you have to replace the motor in a year or 2 so what? Replacing a Tunze won't be as painless to your pocket though.

Tunze stated at most 15 minute intervals if the Nanostreams are to be used with wavemakers. This is specifically for the non-controllable nanos of course as the others can be used with their respective Tunze controllers. Heck even some SEIOs can handle the 15 minute on/off intervals.



D.

 

[northbay-reefer]

too pricy ... I rather support the MJmod since that was the original mod

dhnguyen ... thanks for making this mod in the first place... btw we got the same last name

 

[dhnguyen]

FWIW, I think it's much better to mount the Maxi-mods on a sea swirl, Wavy Sea, or Swirler-Stein than using them on a wavemaker. The random flow pattern you get from that will be superior than anything wavemakers can do.


Here's a link to the DIY Swirler-Stein
http://reefcentral.com/forums/showthread.php?s=&threadid=799971

 

[dhnguyen]

<a href=showthread.php?s=&postid=8275032#post8275032 target=_blank>Originally posted</a> by northbay-reefer
too pricy ... I rather support the MJmod since that was the original mod

dhnguyen ... thanks for making this mod in the first place... btw we got the same last name

Hehe... Where in North Bay are you? I just moved to WA from the Bay Area a couple of months ago.

D.

 

[spykes]

how are you guys determining the flow rate of a maxijet? i have used 3 dumas props on a maxijet and it still doesnt compare to my tunze. I have tried the blue hyperjet 1.75" as well. the pitch of the tunze prop is .5" with a diameter of 2" i dont get how you guys make up these numbers. I can tell you i definatly put the maxijets to the test.

Also tunze has a clutch system which stops the prop in the wrong direction. where as maxijet your relying on the magnet jumping out and hopefully going back in starting up the right direction.

 

[dhnguyen]

Actually the 6000 and 6100 are DC powered motors which means the direction in which they spin are controllable whereas the motors on the MJs are 2 pole AC which means they can spin both ways and will oten times switch direction on you depending on the position of the magnet when it was powered off. This is why a stopper is needed for MJ mods while none is needed for the Tunze 6000 and 6100. The clutch mechanism you are referring to only exists in the non-controllable 6060 and 6080 models. And yes I have heard of restarting problems on these too albeit rarer than the notorious SEIOs.


Not all Dumas propellers are the same mind you. The 3002 Dumas is tiny (1.25") whereas the 3004 version is 1.75" in diameter. I tested mine by attaching a large bag to the output end of the pump, turned it on and timed for some seconds then measured what was in the bag. For an Octura 1435 prop this worked out to be around 2 seconds to fill one gallon which is approx. 1800gph, conservatively speaking lets just say it's 1500gph for good measure. The Octura 1435 is 1.38" in diameter so it would stand to reason that the larger 1.75" Dumas 3004 will produce much more flow, it certain looked and felt much more IMO.

The flow rate also depends much on how your built your shroud too. The more open your shroud design is the better the flow. Restricting it too much and you'll barely get anything out.

Oh yeah and that propeller for the Tunze? It's like $29 for a replacement :eek1:


EDIT- Actually now that I remember it I think it was more like $19 or something for the Tunze Hydro propeller still way too expensive for just a propeller.

 

[hahnmeister]

2" diameter with a .5" pitch... that only multiplies up to 1" of total flow. I know plenty of MJ props that do more than that... in fact... most of them do. The catch is, the MJ only goes 1800rpm. The advantage of many DC motors is that they can easily go faster... like 3000 rpm, to make up for the smaller prop. But as speed goes up the torque often goes down if I remember correctly, so tunze props are less of an impact, but they do spin faster. I cant remember the numbers, but the only diff between the 6000 to the 6100 is the speed increase... same prop, same motor. So a MJ that can outdo a Tunze... its within reason.

 

[Snarkys]

<a href=showthread.php?s=&postid=8267619#post8267619 target=_blank>Originally posted</a> by Doni
The mj1200 kit = 3300 gph? I'll double check when I get home.
It moves a LOT of water.

has anyone tested one of these to find out . Im really curious.

It uses the dumas 3004 with a good portion shaved off so it fits in the pipe. Keep meaning to order one and see.

I also saw it at the macna, sure looks slick, average person wouldn't even know the pump doesn't come stock that way : ) If you are looking to mod your MJ and want to do absolutely no work these are great !

 

[dhnguyen]

I highly doubt that it puts out 3300gph. 2300gph maybe but with a shaved down Dumas 3004 more likely 2000gph or less even.


D.

 

[Snarkys]

<a href=showthread.php?s=&postid=8279356#post8279356 target=_blank>Originally posted</a> by hahnmeister
2" diameter with a .5" pitch... that only multiplies up to 1" of total flow. I know plenty of MJ props that do more than that... in fact... most of them do. The catch is, the MJ only goes 1800rpm. The advantage of many DC motors is that they can easily go faster... like 3000 rpm, to make up for the smaller prop. But as speed goes up the torque often goes down if I remember correctly, so tunze props are less of an impact, but they do spin faster. I cant remember the numbers, but the only diff between the 6000 to the 6100 is the speed increase... same prop, same motor. So a MJ that can outdo a Tunze... its within reason.

I think i need to snag some pumps with known flow rates like the seios and tunzes from some club members and do a few side by side tests with the bag.

maybe make a video of it so it can't be disputed : )

 

[Snarkys]

<a href=showthread.php?s=&postid=8299605#post8299605 target=_blank>Originally posted</a> by dhnguyen
I highly doubt that it puts out 3300gph. 2300gph maybe but with a shaved down Dumas 3004 more likely 2000gph or less even.


D.

my own testing had the the dumas 3004 at around 2000gph.

id like to do the testing again with a bigger bag and maybe a hot tub or something so we can have the pumps on longer to get more accurate results.

 

[Doni]

Not sure the output. I do wish I had the mj900 instead of the 1200... too much flow for my 4' lps/anemone tank.