Magdrive 7 powerhead

[Gary Majchrzak]

Here's a Mag 7 superglued to a Magfloat. It's on a 22 minute on/off cycle. This has been up and running for a couple of days now. The only complaint so far is that a Mag7's output @zero head (700GPH) isn't enough for the job I want it to do. It's raised the remperature of my 225 gallon tank one degree F., but in my particular case that's okay.
The magnet mount is having no apparent effect on ops.
I wonder how long this pump will last on the 22 minute on/off cycle. I might try and set up a longer cycle.
There's a MJ1200 on the right side of the pic for size comparison.

 

[tmz]

Good to know the magnet doesn't effect it's operation. What are you using it for on a 22 minute cycle? A wavemaker?

 

[Conesus_Kid]

Gary,
I can't track it down, but there's a thread on the DIY forum where someone did the maxi-mod to their mag pump. There was a video where it was blowing 6" pieces of live rock around the tank.

In that case, I think they used a Mag 18 or larger. You may give a streaming mod a try on that Mag 7.

 

[johno4]

Another thought is to put an eductor on the output. Might be too big looking though.

 

[Krazy]

Yikes!!

What is the reason behind the mag 7

 

[KurtsReef]

Wow

I am surprised the Magfloat holds it, those pumps are not the lightest thing in the world.

 

[Gary Majchrzak]

<a href=showthread.php?s=&postid=11448761#post11448761 target=_blank>Originally posted</a> by tmz
Good to know the magnet doesn't effect it's operation. What are you using it for on a 22 minute cycle? A wavemaker?

yes- a Tsunami wavemaker.

Conesus_Kid- somebody told me about a video where rocks are blowing around but I have yet to find it.

johno4- I considered adding an eductor. The jury is still out on that.

Krazy- the reason behind using a Mag7 is simple: I was looking for some readily available muscle to create compact laminar flow

Kurt- I was surprised the magnet works as well as it does on my 1/2" thick glass. The cord also acts to stabilize the contraption a bit.

 

[johno4]

Gary, maybe that flow accelerator that is conected to the lockline would work. For $15 it might be worth a try, you could screw it right on.

 

[dan10342]

I have maxis glued to maxijets. suction cups suck.

must be using the ehavy duty mags tho, i have a mag 7, and its rather heavy. (compared to a maxi)

 

[Gary Majchrzak]

my Mag7 powerhead is glued securely to a large size Magfloat.
This is a convenient and powerful solution that many people might find practical depending on their particular needs.
Magdrives are very reliable pumps. Without the on/off cycle I'm sure this powerhead would last for many years.
If you're looking to create powerful compact straight line flow this might be a viable solution depending on your needs.

Anyone in the hobby for a length of time will tell you that suction cups are not an option in a reef aquarium

 

[dan10342]

>>I have maxis glued to maxijets. suction cups suck.

meant mag floats glued to maxijets

 

[dan10342]

>>I have maxis glued to maxijets. suction cups suck.

meant mag floats glued to maxijets

 

[drtango]

Gary-

I bought one of these, they actually work amazingly well, almost like a Tunze stream. Nice strong wall of flow. The mount is very clever, and the additional magnet is neat, though you seem to have that solved already.

http://www.premiumaquatics.com/Merc...&Product_Code=AF-SF1600&Category_Code=Maxijet


Merry Christmas!

John

 

[Gary Majchrzak]

thanks for mentioning that, John. I've heard that "Sureflows" are good. I'll bet somebody somewhere is now working on mods like a sureflow for larger pumps/powerheads.

 

[drtango]

What I like best is that they give new life to those old maxijets with worn impellers that just "jiggle" under power

 

[dan10342]

did u get the idea to use a magfloat from my "magfloat" thread?

 

[Gary Majchrzak]

<a href=showthread.php?s=&postid=11461002#post11461002 target=_blank>Originally posted</a> by jjjo
did u get the idea to use a magfloat from my "magfloat" thread?

I'm sorry but the truth is no-
people have been attaching things to magnets for many many years now. There are even magnets specifically marketed as powerhead holders.

 

[dan10342]

well i will admit i got the idea from those magnet holders... which are outrageously priced btw.

 

[Gary Majchrzak]

bump and update

bump and update

my experimentation with this Mag 7 powerhead was PRIOR to EcoTech Marine making Vortech available. The 22 minute on/off cycle eventually wore down the Mag 7 pretty quickly!

I replaced the Mag 7 powerhead with a MP40 and then a MP60 from ECOTECH and I couldn't be happier :wave:

I now use this Mag 7 to mix new saltwater.