Mazzei Injector Protein Skimmer

Yup. with the latest modifications I made, I think I got it running OK for my needs... If a used Mag 9 comes up at a good price thought I will pick it up and than the performance should be amazing...
 
Poseidon skimmer

Poseidon skimmer

Hey all,

This is after my skimmer has broken in and I've now got it on more flow so it's producing some good foam and solid skimmate. I've got a 484 mazzei injector that's been slightly modified, but I'm going to test a 784 and see how that goes. Right now I'm pretty happy with the production though.



Peace,
John H.
showphoto.php


Check out some more pics of it in my gallery. I'll be trying out different venturis on it so I'll be posting more pics as I go along.
 
Rufio what pump are you pushing it with now?
I'm getting consistent skimmate now, and after a couple days break in I realized I could turn the air flow up a bit w/o killing the bubble size.
I still don't get the immediate super thick amazing dry foam I did with Dmans pump though, so definately I know I could improve performance with a bigger pump
 
GenX/Mak4

GenX/Mak4

Hey Littleprince,

The pump is partially run off of my genx/Mak4 pump (comparable to a iwaki 55rlt?). I've got it teed off, so part of it returns flow thru to my display through a sqwd and the rest goes to the skimmer (you can see the setup in my gallery). I am currently changing the plumbing on the output side of the pump since it's all 3/4 PVC pipe now to 1" PVC pipe since I'm trying out a bunch of different injectors and I'll see what I like best, but the mazzei is doing a pretty good job for right now.

Peace,
John H.
 
I'm not exactly sure how a Mazzei could be overdriven... I mean there will definately be dimenishing returns, but in theory couldn't you shoot a super high velocity stream through one of these with a monstrous pump?
What I consider the max pump is one that blows it apart. If you think it about it theres not really any moving parts. A mag 9.5 is about as large as I would put ont 584 because anymore doesnt seem neccesary as the 9.5 gives it excellent bubble production and a beautiful foam I would think. If you put a huge pump like a 1 hp jacuzzi pump or something you would get a heck of a stream, a lot of air and a huge amount of back pressure on your pump.
 
Mazzei venturi for Mag5

Mazzei venturi for Mag5

Joey French said:
So, does anyone know which mazzei would be considered "overdriven" by a mag 5?
You might try the 384 or 484. I bet you would definitely be solid on the 384, maybe not so much on the 484.

Peace,
John H.
 
Increasing bubble production...

Increasing bubble production...

Hey guys,

You might really want to try placing the injector as close to possible to your pump outlet. This will reduce frictional losses and head pressure losses before it hits the injector. I tried it and it helped. I removed a 90 degree elbow and lowered the injector by a foot, so now the injector is after the T and only one elbow, instead of two, and been lowered a foot from 3 and 1/2 feet to 2 and 1/2. This seemed to help a bit and did increase flow and bubble production, but it still wasn't what I wanted. (I also have it mounted vertically so that doesn't seem to affect output.

As mentioned earlier, I then bumped up performance a lot by increasing the inlet pipe diameter to 1" from 3/4". I guess the 78% increase in area and ~ 120% increase in volume really helps out because now it's producing foam nicely.

To further increase production, as I think the mazzei can handle it, I'll be changing the outlet to the 1" PVC, using spa flex wherever I can, and changing the T fitting to a Wye fitting. I hope to really be able to drive the larger mazzei I will be receiving, the 784.

If you are using nylon tubing with barbed hose fittings, I'd try to change to flex spa and normal PVC fittings as you reduce the flow restrictions imparted by the barbed fittings.

Just my two cents and telling you what worked for me,
John H.
 
978

978

Hey, thanks to all for the info. I have a 978 that I've had for about 10 years or so. What I understand is that 1200 gph flow, but what size skimmer body shoud I make? how tall? Any assistence would be helpful. suggestions?please :rollface:
 
Re: 978

Re: 978

Tridacnagigas said:
Hey, thanks to all for the info. I have a 978 that I've had for about 10 years or so. What I understand is that 1200 gph flow, but what size skimmer body shoud I make? how tall? Any assistence would be helpful. suggestions?please :rollface:

The sky is the limit my friend... or maybe just the roof.... Anyways, I'd probably go with 6" possibly 8" diameter tube and you could try to split the injection to two outputs in the skimmer body to create a helical pattern or swirling of the bubbles, like the aerofoamers, and then you could reduce the height of the skimmer. With a monster venturi like that, I'd probably go at least 3 to 4 ft. and use the helical injection method, if not then you might want to think 5 to 6'. These are all approximations, if you really wanted to get mathematical and sciencey about it, look up stuff in the advanced topics section and I'm sure you'll find something about increasing skimmer efficiency. Make sure you use a nice pressure rated pump on that one too, because of all that head pressure created by the weight of the water in your monstrous skimmer. If you do build one like that, please keep us updated as that will be interesting to see.

Peace,
John H.
 
Thanks, I was thinking about the helical style. I have a 648 areofomer now on my reefs. I am looking at adding a fishroom/green house to my exsisting house and thought I could use the venturi for the fishroom main skimmer. I like the idea of splitting the returns, Thanks. Oh I am thinking about 8" with at least a 48" column. Shcdule 40 pvc. Thanks I'll keep you posted, Paul
 
Your gonna need a monster pump on that baby. If the mazzei is rated for 1200gph, I'd go with something pressure rated at 1200gph, or otherwise 1500gph+ from a regular pump. 48" sounds gd for the main body.

Pretty soon we can start our own Mazzei club thread.
=)
 
Slightly larger pump.

Slightly larger pump.

littleprince said:
Your gonna need a monster pump on that baby. If the mazzei is rated for 1200gph, I'd go with something pressure rated at 1200gph, or otherwise 1500gph+ from a regular pump. 48" sounds gd for the main body.

Pretty soon we can start our own Mazzei club thread.
=)

Little prince,

I think he would actually need a slightly larger pump as he'll be fighting 4 feet of water in the chamber and that's actually a lot of weight and additional pressure. I wonder if I could bench a 4 foot long 8" diameter column filled with water!

Peace,
John H.

Also, the mazzei club is already around, they are just underground, I actually think a lot more people have mazzei injectors and just don't know it.
 
Man, i would love to be on that club or maybe we can start club from here. hehehehe =). Just a thought, anyone care?

arjay96
 
I am going to start with a Mak 4 have a couple extras around. If i'm not satisfied with it's preformance than I'll goto another pump. I do have an extra ampmaster here also, but that seems like a waste of flow? Maybe it wouldn't be used as a dedicated pump? Any thoughts? thanksfor the replies, Paul
 
Um, Yeah....

Um, Yeah....

Tridacnagigas said:
I am going to start with a Mak 4 have a couple extras around. If i'm not satisfied with it's preformance than I'll goto another pump. I do have an extra ampmaster here also, but that seems like a waste of flow? Maybe it wouldn't be used as a dedicated pump? Any thoughts? thanksfor the replies, Paul

Yeah,

I usually have a few large, expensive pumps just lying around my house just waiting to be used too... :lol:

I guess you could try the Mak4, seems like it could work well for you if it were dedicated just to the skimmer, but I thought you were going to split the return, if you were going to do that, run it with the ampmaster, that way you could kill two birds with one stone. If you designed the plumbing properly, I bet you wouldn't lose that much flow. I would use 1.25" or even 1.5" PVC on the ampmaster!
 
Ya, I've got enough materials laying around to build a fishroom/ greenhouse. I was looking at the smaller RK2 models and decided on the ampmaster 3000. 1.5" on all pvc. The pump will run both the venturi and the supply to the top of the skimmer. once the water/air mix leaves the venturi I will split them to feed the skimmer, here I will go to 1" pvc. Hey how or what company would you recommend to build glass aquariums?
 
Anyone know if a Mazzei 384 will work with an Ocean Runner 2500 pump? I have a 384 and was thinking of using it on a tuboflotor skimmer.
 
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