MTC skimmer club!

Jeff suggested an external, Blueline 30 I believe, but I didn't want to drill the tank (sump)

Do I remember correctl,y from some previous posts, that you have substituted an after market venturi?

I did try a different mazzei as well. I ended up settling with a waveline dc12000 and the stock mazzei.

This page has my summary of different configurations I tried
http://www.reefcentral.com/forums/showthread.php?t=2519839&page=9


At some point I still want to try a dual venturi mod.
 
Neck Cleaner

Neck Cleaner

Anyone using a neck cleaner on an MVX skimmer? I have the 30 inch and am considering a neck cleaner like the Avast Swabbie.
 
Anyone using a neck cleaner on an MVX skimmer? I have the 30 inch and am considering a neck cleaner like the Avast Swabbie.

Post #229

and ca1ore does as well. He has a double wiper on his tall dual venturi.


I just love this picture. Just shows how thick that foam is.
0efc4bca0726502201f5f6e96c63cd61.jpg
 
That picture it appears the skimmer is upside down and outside on the patio?

lol yes

It's just the top though to be cleaned outside with the hose so it doesn't smell up the house. That just shows how thick that foam is since I pulled it off the top of the skimmer, carried it up from the basement, took it outside, and placed it on the table. That foam was still there. :D
 
can someone do me a favor and measure the height of their mvx 24 and 36? I have a mvx skimmer that Jeff built for me about a year ago, but, I can't recall which version I have ... thanks.
 
can someone do me a favor and measure the height of their mvx 24 and 36? I have a mvx skimmer that Jeff built for me about a year ago, but, I can't recall which version I have ... thanks.
The 36 will be about 36". The 24 will be about 24"

This is my 36" with quick change head
775598fd2b16ac20e041cadae3a74f1d.jpg
 
good morning. can some one tell me what the difference between an MTC and an MRC Skimmer is. which one would you recommend and what type? regular vs recirculating. i am looking to buy a skimmer and found a good deal on an MRC MR-3R and would like some opinions before i make a purchase. Is one noisier than the other?

thank you
 
good morning. can some one tell me what the difference between an MTC and an MRC Skimmer is. which one would you recommend and what type? regular vs recirculating. i am looking to buy a skimmer and found a good deal on an MRC MR-3R and would like some opinions before i make a purchase. Is one noisier than the other?

thank you

MRC is a totally different company. Marine Technical Concepts vs My Reef Creations. They make good skimmers too and have been around a long time. The MR-3R is a beckett style and is a nice skimmer. It will take some more maintenance then a venturi style from my understanding to keep the injector clean and operating optimally.

My MVX is very quite with the waveline dc12000 pump which has reduced it's whirring noise it started with at higher power. So, will depend on the pump used. The venturi itself I don't notice any noise. I don't know about a beckett.

From my understanding a beckett will work much better with a pressure rated pump vs a venturi which also should run on a pressure rated pump but seems to have a bit more leeway. I can't imagine my skimmer producing more then it is now and the waveline though it has a decently high head height rating it's not a pressure rated pump.
 
Jason,

What level do you run your pump at? What GPH is it at that level?

I don't know what the GPH is but I ended up at 90% after all the testing and producing around 6 cups per day. After the pump broke in (slimmed up most likely) it's become very quite. At first there was a whirring sound.
 
6 cups? Wow. I have the same skimmer with a mag 18 and get a cup or less per day. Are you skimming pretty wet?
 
6 cups? Wow. I have the same skimmer with a mag 18 and get a cup or less per day. Are you skimming pretty wet?

Every system will be a little different and keep in mind I'm heavily stocked and feed a LOT multiple times a day. With the mag 18 I was getting around 3 cups per day. The skimmate is most definitely not wet and I would consider on the dry side which shows in the pictures of the foam head I've posted previously.



Below is a summary of my testing the mag18 and the waveline dc12000 with a couple different injectors. I ended up using the waveline dc12000 with the stock mazzei.


Some cool stats update 4


Aquamaxx Em 300
Air draw: ~38 scfh
Watts: rated 27watts actual: 31.38watts
Skimmate produced: ~1 cup dry/day and ~3cups wet/day low side


-------------------------------------------------------------------------------------------------


Mag18 as return pump w/ ~12' head height
Max head height:16.85'
Watts: rated 150watts actual: 71.18watts
Flow: rated 1500gph@0 head actual: ~750gph@12' head pressure

-------------------------------------------------------------------------------------------------

Mag18 with MVX stock 684 mazzei venturi
Air draw: ~12 scfh
Max head height:16.85'
Watts: rated 150watts actual: 62-63watts
Skimmate produced: ~3 cups dry/day high side


Mag18 with 784 mazzei
Air draw: ~14scf
Max head height: 16.85'
Watts: rated 150watts actual: 65-66watts
Skimmate produced: ~3 cups dryish/day low side

-------------------------------------------------------------------------------------------------


Waveline DC 12000 @ Level 8 w/ 684 mazzei
Air draw: ~18scfh
Max head height: 22.96'
Watts: rated: 150watts (w/ adapter) 139watts (after adapter) actual: 114wattts (w/ adapter)
Skimmate produced: ~4 cups dry/day


Waveline DC 12000 @ Level 9 w/ 684 mazzei
Air draw: ~22scfh
Max head height: 22.96'
Watts: rated: 150watts (w/ adapter) 139watts (after adapter) actual: 128wattts (w/ adapter)
Skimmate produced: ~6 cups dryish/day!!!


Waveline DC 12000 @ Level 10 w/ 684 mazzei
Air draw: ~24scfh
Max head height: 22.96'
Watts: rated: 150watts (w/ adapter) 139watts (after adapter) actual: 142wattts (w/ adapter)
Skimmate produced: ~6 cups dry/day


Waveline DC 12000 @ Level 11 w/ 684 mazzei
Air draw: ~24scfh
Max head height: 22.96'
Watts: rated: 150watts (w/ adapter) 139watts (after adapter) actual: 147wattts (w/ adapter)
Skimmate produced: ~5.5 cups dry/day


-------------------------------------------------------------------------------------------------


Waveline DC 12000 @ Level 8 w/ 784 mazzei
Air draw: ~22scfh
Max head height: 22.96'
Watts: rated: 150watts (w/ adapter) 139watts (after adapter) actual: 114wattts (w/ adapter)
Skimmate produced: ~3 cups dry/day


Waveline DC 12000 @ Level 9 w/ 784 mazzei
Air draw: ~22scfh
Max head height: 22.96'
Watts: rated: 150watts (w/ adapter) 139watts (after adapter) actual: 128wattts (w/ adapter)
Skimmate produced: ~5.5 cups dry/day


Waveline DC 12000 @ Level 10 w/ 784 mazzei
Air draw: ~24scfh
Max head height: 22.96'
Watts: rated: 150watts (w/ adapter) 139watts (after adapter) actual: 143wattts (w/ adapter)
Skimmate produced: ~6 cups dry/day


Waveline DC 12000 @ Level 11 w/ 784 mazzei
Air draw: ~26scfh
Max head height: 22.96'
Watts: rated: 150watts (w/ adapter) 139watts (after adapter) actual: 150wattts (w/ adapter)
Skimmate produced: ~6 cups dry/day



Will calculate out the efficiency/performance thing next. but right now I have to rip apart a power bar... ha!

I couldn't be happier with the waveline with it's higher head pressure rating compared to other (affordable) internal AC or DC pumps out there.

Adding on now to what I started to put together before.

So lets see some form of percentage of the ratio between cups dry produced vs wattage vs. air draw used
Aquamaxx Em 300
vs. wattage used: 3.2% "efficiency"
vs. air draw: 2.6% "performance"

-------------------------------------------------------------------------------------------------


MTC MVX with Mag18 and MVX stock 684 mazzei venturi
vs. wattage used: 4.8% "efficiency"
vs. air draw: 25% "performance"

MTC MVX with Mag18 and 784 mazzei
vs. wattage used: 4.5% "efficiency"
vs. air draw: 21.4% "performance"

-------------------------------------------------------------------------------------------------


Waveline DC 12000 @ Level 8 w/ 684 mazzei
vs. wattage used: 3.5% "efficiency"
vs. air draw: 22.2% "performance"

Waveline DC 12000 @ Level 9 w/ 684 mazzei
vs. wattage used: 4.7% "efficiency"
vs. air draw: 27.3% "performance"

Waveline DC 12000 @ Level 10 w/ 684 mazzei
vs. wattage used: 4.2% "efficiency"
vs. air draw: 25% "performance"

Waveline DC 12000 @ Level 11 w/ 684 mazzei
vs. wattage used: 3.7% "efficiency"
vs. air draw: 22% "performance"

-------------------------------------------------------------------------------------------------

Waveline DC 12000 @ Level 8 w/ 784 mazzei
vs. wattage used: 2.6% "efficiency"
vs. air draw: 13.6% "performance"

Waveline DC 12000 @ Level 9 w/ 784mazzei
vs. wattage used: 4.2% "efficiency"
vs. air draw: 25% "performance"

Waveline DC 12000 @ Level 10 w/ 784mazzei
vs. wattage used: 4.2% "efficiency"
vs. air draw: 25% "performance"

Waveline DC 12000 @ Level 11 w/ 784 mazzei
vs. wattage used: 4% "efficiency"
vs. air draw: 23% "performance"



This is all fully assuming that the skimmate production would be exactly the same time after time at each of those levels. Which it's been really pretty steady but I'm sure what pulls 6 cups per day one time might pull 5.5 cups per day and reverse. But I don't see something pulling 3 cups per day gaining that much ground or reverse.

So, my totally unscientific conclusion which is most likely wrong is:

Waveline DC 12000 @ level 9 with the stock 684 mazzei is the winner for highest performance ratio of cups produced to air draw.
Mag 1800 with the stock 684 mazzei is the winnder for highest efficiency ratio of cups produced to wattage used

If looking for as much air draw as possible to say for aeration purposes the Waveline DC 12000 @ level 11 w/ the 784 mazzei is the winner.

If looking for a pump that runs cooler that will still produce something you'd be happy with then the Mag 18 w/ 784 venture. (produced about the same amount of skimmate as with the 684 but it was dryer so could produce more wetter.)

Definitely some unexpected results as I figured the waveline with the 784 was going to really kick the 684's butt. But, what I think is happening, the waveline handled the head height so well the more restricted 684 didn't hurt it at all. The 784 did help the mag18 that doesn't have near the head height rating. In fact I think the 684 may have produced a finer bubble with the waveline vs. with the 784.


and in the end YMMV :cool:

There's more I plan to play around with on this skimmer but going to take a break from it for a bit and get back to some other things like my saltmix parameter testing and thread. ;)

Cliffs: This skimmer kicks @$#
 
Anyone know how to reach MTC

Anyone know how to reach MTC

I have emailed and tried to call them. No answer on the phone. Holiday time I know, but no ability to leave a message.

Thanks,

Scott
 
Yep, it took me several weeks before I got a hold of him. It's well worth it.

I would wait until after this weekend to try.
 
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