the pump wars continue

[gig]

tunze answers with their own tests....

...but look at the ugly wire in the tank on the tunze!

http://www.advancedaquarist.com/blog/tunze-posts-video-demonstrating-flow-vs-turbulence

Actually, I still like the dispersion of the vortech better, but both are great pumps.

 

[arioch]

I thought you want turbulent over laminar anyway?

 

[gig]

agreed arioch, I'm not sure how this helps their cause, as they are just trying to show their pumps have more reach.

 

[poidog81]

it is widely known that vortechs create a wider flow than the tunze. So this report from tunze is irrelevant by the way they are comparing measurements. Also look at the bubble test, they have the hose up against to pump so all the air goes into the pump, yet the vortech the hose is 3 inches away with 1/2 the air not even entering the pump! And notice the awesome undertoe the "competition" pump has, while the tunze has virtually none.

 

[gig]

I also dont get the measurement using the size of the opening of the pump, is how far we measure it...i.e. the tunze has a smaller output (say 1.5"), so we will hold the instrument 1.5" away...the vortech is say 3", so we will hold it 3" away...doesn't see right.

 

[SkullV]

They seem to be shooting themselves in the foot with this test. Looks like I can hit one coral all the way across my tank (as long as NOTHING is in the way) or I can hit all the corals in 50% of my tank. I would take my 2 MP40wES (100% coverage) over 2 Tunzes any day.

I wonder if this is their "fix" for the under-performing pumps in the independent test.

 

[poidog81]

I also dont get the measurement using the size of the opening of the pump, is how far we measure it...i.e. the tunze has a smaller output (say 1.5"), so we will hold the instrument 1.5" away...the vortech is say 3", so we will hold it 3" away...doesn't see right.

Put your hand in front of a vortech and the highest flow concentration is not directly center from the output... it's like a ring of high flow, hence a more dispersed flow instead of a direct beam of flow.

 

[Allmost]

I really dont know what the intention of tunze was releasing this video ...

are we sure Ecotech didnt do this experiment ? cause they look better at the end hahaah

just look at that light green thing added, and count how many seconds it takes each pump to get the WHOLE tank light green ! all tunze does is push it to one side ... the vortechs are mixing it in.
I can see this when dosing Zeovits Coral snow in my tank too.

 

[gig]

I really dont know what the intention of tunze was releasing this video ...

are we sure Ecotech didnt do this experiment ? cause they look better at the end hahaah

just look at that light green thing added, and count how many seconds it takes each pump to get the WHOLE tank light green ! all tunze does is push it to one side ... the vortechs are mixing it in.
I can see this when dosing Zeovits Coral snow in my tank too.

I thought the same, just as the vortech was beginning to reel in and show the undertow it was creating, they stopped the video.

 

[arioch]

The undertow is like the best part of the Vortech, aside from the extra broad dispersion. I was just telling someone on another forum to look into getting Vortechs because of its specific ability to do that.

 

[gig]

the first time I ran mine, I was amazed at the stuff it was pulling off the sandbed, now I dont see it as it's been pulled into the water column and likely down the overflows.

 

[badazztealcobra]

I can't wait for the 6095's to get released, I'm loving how much the flow is spread out versus my 6055's...... I'll keep one of my 6055's, but add two 6095's into the mix..... :celeb1:

Tunze is just showing what we've already known, that the streams have more oomph across a large tank and the vortechs have more turbulent flow. I think each one has their place really, but I'll be sticking with my Tunzes for quite awhile. Plus I'm sure when they come out with the modifications to get the numbers right where they were advertised they will probably do this test again.....

I'm also guessing they might take their findings with the more open 6095 nano stream and make a line of wide mouth full size streams for people who want a more turbulent flow......

I can't wait to see what they come up with myself. :lol2:

 

[badazztealcobra]

...but look at the ugly wire in the tank on the tunze!

Or Tunze fans can say listen to the irritating hum of the competitors product while at 100% use.... :lol2:

Or "too bad I have to have my tank at least 3" away from a wall to fit a competitors pump on my tank" which BTW is my biggest pet peeve with the vortechs.

I really dig the design of the Vortechs, but they are noisier than any Tunze I've ever used when they get up to full speeds, and some of us like to put our tanks up against the wall, not spacing it away 3+" for the dry side of the pumps.....

Oh well, to each their own and I'll bet money that all our power heads get better as results of these tests..... :thumbsup:

 

[arioch]

Alternatively we can have powerheads that extend 6" on the inside of the tank with all attending wiring and heat problems.

 

[badazztealcobra]

Heat problems ?!?!? Seriously ??? My pumps run at 15w, it adds no heat at 15w, maybe .01 degrees if you're lucky. I've never heard of Tunzes melting acrylic tanks, but have heard/seen of Vortechs doing it....

Mines 4" total off the back glass.... I suppose a full size stream might be 6" though so I'll give you some leeway there. Out of curiosity, How much does the wet side stick of the glass with a mp40? I'm guessing they're close to the same, but half is inside, half is outside.....

Only thing I can give you 100% is the wire... Even then, I'd rather have a wire going up the back of my tank that blends into my background than having to stick two pumps smack into the middle of my starfire viewing side panels..... :lol2:

Just having fun with this, I hope nobody thinks I'm getting worked up or anything.... LOL

 

[BeanMachine]

Alternatively we can have powerheads that extend 6" on the inside of the tank with all attending wiring and heat problems.

Yeah I don't agree with the heat issue aspect.

 

[Sullyman]

Random flow is what makes the coral happiest. You can spin a tunze with a wavy sea and get the type of flow that makes the coral grow. Having 2 set up that way and the water streams crossing as they spin create that strong random flow. That's not possible with the vortec, it's got to be flat on your glass. Vortecs are like tunze waveboxes in my opinion very limited.

 

[badazztealcobra]

Just watched the video again, and I'm really liking the new 6095's flow pattern.... Seems more like the vortech the way it has all the turbulence on the same side of the tank that the pump is on.

It seems like the Tunze's disbursement (if that's even a word) is always on the opposite side of the tank from the pump, while the Vortech's seems to stay on the same side as the pump..... Either way, with a pump on each side of the tank, you should have turbulence on both sides of the tank...... :thumbsup:

I have a feeling my tank is going to love the (2) 6095's and the extra 6055 for aiming at specific areas..... It'll even work out well if I end up changing out to a cube style tank..... :celeb1:

 

[badazztealcobra]

You can spin a tunze with a wavy sea and get the type of flow that makes the coral grow. Having 2 set up that way and the water streams crossing as they spin create that strong random flow.

I actually LOVE how yours are setup like that, and hope to duplicate it one of these days !!!!! :thumbsup:

 

[ostrow]

I used to have my Tunze's DIY-ed on sea-swirls, before these brackets were sold commercially. I believe I was one of the first to do that. I liked it. But a bit of an eyesore, really.

I'd say the Tunze vs Vortech is really splitting hairs -- both have advantages and disadvantages. But my Tunzes on Apex, I get both turbulence and spread -- one is creating a 2" wave across the whole tank, the others are creating tornadic random flow around the tank.

Not sure about the undertow aspect -- if I had more that would help my sandbed for sure, which is having some issues right now in patches. But I'm not stressing that too much.