Tunze 9410 Recommendations

ReefingwithO · Jan 1, 2018

I have a high bioload 75 gallon tank.

Do you recommend the 9410 or the 9410 DC version. I am looking for a skimmer that fits this install, I'm not interested in having it fit a larger tank later. (I already have that covered). If the 9410 can do the job it would be perfect for me.

Is there a difference between the body size for the two skimmers or is it just the pump that's different?

@rvitko

Water Dog · Jan 1, 2018

Same body, just different pumps. The DC pump gives you a bit more power, but from what I’ve read, most run it at around 50%.

Finhead · Jan 1, 2018

If it gets rid of the annoying humm of the standard 9410 (which it will) I would opt for the DC version. The 9410 is a beast of a skimmer but the humm drove me nuts. lol

mcarroll · Jan 1, 2018

9410 has no hum or everyone who owns one would have the same hum. Yours is the first report of this I've heard. (Mine has no hum.)

How old is yours?

Can you tell specifically where the hum is being generated?

Are you sure that it's not from the pump touching something in the tank?

Does it do the same thing when you remove it from the sump and test it? (e.g. in a tote of water)

I sampled my 9410 with a dB meter app before and it seemed to agree with my ears (which are much more subjective) that it's super quiet.

It might be interesting for you to try the same thing....see what a dB meter says for your various pumps, skimmer, etc.

It would also be interesting for some of us to compare dB readings to see if the apps give results that are useful and comparable.

mcarroll · Jan 1, 2018

ReefingwithO said:
I have a high bioload 75 gallon tank.

Do you recommend the 9410 or the 9410 DC version.

The standard 9410 is a little beast and would keep a heavy-loaded 100-150 gallon tank clean and aerated. It handles my system (~100 gal total) with ease.

Your 75 would be "easy pickins" too.

Go for it!

ReefingwithO · Jan 1, 2018

Thanks everyone. I think I’m going to go with the DC version because I found it on sale at almost the same price as the other version. (With some reward points too)

The descriptions on MarineDepot says the size of the skimmers are different.

9410 - Dimensions without post-filter: L250 x W113 x H418 mm (L9.8 x W4.4 x H16.4 in.) 230 V / 50 Hz, 11 W
https://www.marinedepot.com/Tunze_M...r_Aquariums_Reefs-Tunze-TZ5340-FIPSIS-vi.html

9410 DC - Dimensions without post-filter (L x W x H): 250 x 180 x 415 mm (9.8 x 7.0 x 16.3 in.)
https://www.marinedepot.com/Tunze_M..._Aquariums_Reefs-Tunze-TZ77100-FIPSIS-vi.html

Finhead · Jan 1, 2018

mcarroll said:
9410 has no hum or everyone who owns one would have the same hum. Yours is the first report of this I've heard. (Mine has no hum.)

How old is yours?

Can you tell specifically where the hum is being generated?

Are you sure that it's not from the pump touching something in the tank?

Does it do the same thing when you remove it from the sump and test it? (e.g. in a tote of water)

I sampled my 9410 with a dB meter app before and it seemed to agree with my ears (which are much more subjective) that it's super quiet.

It might be interesting for you to try the same thing....see what a dB meter says for your various pumps, skimmer, etc.

It would also be interesting for some of us to compare dB readings to see if the apps give results that are useful and comparable.

Mine was brand new and made a humm that drove me. I swapped it out for a Deltec at the time, it was dead silent and worked as good or better then the 9410.

mcarroll · Jan 1, 2018

Gotcha. Bummer you must have had a dud.

Glad you worked it out one way or the other though!

Water Dog · Jan 1, 2018

Those MD measurements for the AC version seem off. That 4.4” measurement is physically impossible as the skimmer reaction chamber alone is already 5” not accounting for the measurements of the skimmer base. My AC 9410 dimensions are more in line with the ones given for the DC version.

mcarroll · Jan 1, 2018

DOC Skimmer 9410
DOC Skimmer 9410 DC

I would trust Tunze's info published on their website.

Water Dog · Jan 1, 2018

Some people have vibration issues with the cup lid... to remedy that, I use a sticky pad and weighted hockey puck on the top of the lid.

rvitko · Jan 2, 2018

The hum was common on older ones, this was addressed by some fins molded in that grab the cup tightly and that changed happened around 2012. The lid can still hum sometimes and some weight on it is the best remedy. These are the same except pump, the DC ones are much easier to tune since it is as simple as dialing in pump speed and it is better able to adapt to water level deviations since the pump is so adjustable. For the AC model a constant water level around 6" is the ideal.

Finhead · Jan 2, 2018

rvitko said:
The hum was common on older ones, this was addressed by some fins molded in that grab the cup tightly and that changed happened around 2012. The lid can still hum sometimes and some weight on it is the best remedy. These are the same except pump, the DC ones are much easier to tune since it is as simple as dialing in pump speed and it is better able to adapt to water level deviations since the pump is so adjustable. For the AC model a constant water level around 6" is the ideal.

Sorry in my case it was not the lid I went through all that and built a hold down for it etc. It was 100% the pump, you could hear it through the house as the stand amplified it. Like I say switched to Deltec at the time and never worried about it again.

ReefingwithO · Jan 2, 2018

rvitko said:
The hum was common on older ones, this was addressed by some fins molded in that grab the cup tightly and that changed happened around 2012. The lid can still hum sometimes and some weight on it is the best remedy. These are the same except pump, the DC ones are much easier to tune since it is as simple as dialing in pump speed and it is better able to adapt to water level deviations since the pump is so adjustable. For the AC model a constant water level around 6" is the ideal.

What would you say is the optimal water level for the DC version?

mcarroll · Jan 2, 2018

Finhead said:
Sorry in my case it was not the lid

That's what I was asking about earlier – thanks for coming back with the info!

Interesting!

As I suspected.

rvitko · Jan 2, 2018

This could be, but it would only be an out of balance impeller and that could be exchanged under warranty fairly simply.

ReefingwithO · Jan 3, 2018

rvitko said:
For the AC model a constant water level around 6" is the ideal.

What’s the ideal water height for the DC version?

And how come I didn’t hear more about these skimmers? I had to look for something 7 inches wide to find this.

rvitko · Jan 3, 2018

We sell a lot of them but they are kind of a sleeper success, Jake Adams wrote about how much he likes his on Reef Builders, not sure why their is not so much press about them, probably because they are pretty basic and gimmick free, no cone, no diffuser plate, nothing fancy, they just work. 6" would still be the ideal but the ability to adjust pump speed down makes them a lot more adaptable so up to 8" and as low as 5" would work.

ReefingwithO · Jan 3, 2018

rvitko said:
We sell a lot of them but they are kind of a sleeper success, Jake Adams wrote about how much he likes his on Reef Builders, not sure why their is not so much press about them, probably because they are pretty basic and gimmick free, no cone, no diffuser plate, nothing fancy, they just work. 6" would still be the ideal but the ability to adjust pump speed down makes them a lot more adaptable so up to 8" and as low as 5" would work.

I’m going through definitely do a review on it once I have it dialed in.

Would you say for higher water levels such as 8” adjust the pump down for best performance?

rvitko · Jan 4, 2018

Yes, if the water level is higher the pump has to be turned down to avoid foaming over, at 8" it will likely need to be turned down close to all the way.