cheap mag drive upgrade? - Page 2 - Aquarium Advice

Phyl · 08-12-2005, 10:38 AM

The bigger impellers are more expensive (22) but mine is on the way and as soon as I replace it I'll let you know how it goes! I'm putting an 18 in my 12. If that goes well I may replace my 7s with 9s too! I have 2x7, 1x9 & 1x12. The 9 is a bit rattley sounding but not so bad that I want to throw it out the window, lol. It's in the [acronym:ff4a034a6e="Broken or cut pieces of coral which will eventually grow into a new animal"]frag[/acronym:ff4a034a6e] stock tank in the basement anyway so I don't really care how much noise it makes.

ellisz · 08-12-2005, 12:00 PM

For some reason, I think the 7 and 9 are different. I read a little on this on RC when I did the change and seemed like the 5 and 7 were the same housing but different impellers. I check with premium aquatics but they could not tell me on way or the other.

The 7 is all my 1" bulkhead can handle for my [acronym:f688cf30c7="Broken or cut pieces of coral which will eventually grow into a new animal"]frag[/acronym:f688cf30c7] tank. I have it throttled back a bit

nsu7 · 08-12-2005, 01:37 PM

Cool, good info. What about the metal screws on the larger drives, will they corrode if the pump is used submerged ([acronym:0a7ff74580="Saltwater"]SW[/acronym:0a7ff74580]...)

I think I'm just going to return my 1200 after I replace the cracked pump cover for a 1800 (still w/in 60 days)

ellisz · 08-12-2005, 02:23 PM

The one Mag 7 I have has screws in it. They have not rusted yet. Maybe they are titanium?

My Titanium heater is doing well

nsu7 · 08-12-2005, 04:30 PM

I emailed Danner about the screws, it'll be interesting to see what they say.

Phyl · 08-27-2005, 05:24 PM

We swapped out our 12 impeller for an 18. Man is that moving water now! It is the perfect flow. My fish and corals are thrilled with the increase. Quiet as a church mouse too (so far, lol).

nsu7 · 08-27-2005, 06:17 PM

Sweet, I just went ahead and exchanged my 12 for an 1800 to get the full effect since I need alot of flow for my carbon tube bio bed project.

On another note, I finally got a response from danner about the screws. They are stainless steel. I have heard even the highest quality stainless steel will rust... But I dunno...

Hara · 08-28-2005, 01:06 PM

I have been having problems with my little giant pump. Is there any reason that I couldnt use 2 mag pumps instead of the one little giant? It would be more flow and there would not be any rigging of the fittings....

nsu7 · 08-28-2005, 01:09 PM

I know, I've thought about adding a second pump to mine in case I still don't have enough flow. I wonder what would happen if you put two inline. Continuous flow problems?

Hara · 08-28-2005, 01:11 PM

I wouldnt put the two inline...there are 2 returns and each would get its own pump.

08-12-2005, 10:38 AM	#11
Phyl Aquarium Advice Addict Moderator Emeritus Join Date: Oct 2004 Location: NJ Posts: 2,107 Images: 30	The bigger impellers are more expensive (22) but mine is on the way and as soon as I replace it I'll let you know how it goes! I'm putting an 18 in my 12. If that goes well I may replace my 7s with 9s too! I have 2x7, 1x9 & 1x12. The 9 is a bit rattley sounding but not so bad that I want to throw it out the window, lol. It's in the [acronym:ff4a034a6e="Broken or cut pieces of coral which will eventually grow into a new animal"]frag[/acronym:ff4a034a6e] stock tank in the basement anyway so I don't really care how much noise it makes. __________________ Phyllis Join the NJ Reef Club Today! Saving the world's reefs one living room at a time! Next meeting: Eric Borneman, Dana Riddle, & Charles Mazel on October 25, 2008

08-12-2005, 12:00 PM	#12
ellisz Aquarium Advice Addict Moderator Emeritus Join Date: Sep 2003 Location: Indiana USA Posts: 2,676 Images: 9	For some reason, I think the 7 and 9 are different. I read a little on this on RC when I did the change and seemed like the 5 and 7 were the same housing but different impellers. I check with premium aquatics but they could not tell me on way or the other. The 7 is all my 1" bulkhead can handle for my [acronym:f688cf30c7="Broken or cut pieces of coral which will eventually grow into a new animal"]frag[/acronym:f688cf30c7] tank. I have it throttled back a bit __________________ 180 gal Display, 100 gal basement sump, 33 gal refugium, 3x250 MH, 2x160 VHO actinics, zoos, some softies, LPS & lots of acros and other SPS. 100 gal prop tank plumbed into main system w/ 2x96 PC lights and 1x150 MH,

08-12-2005, 02:23 PM	#14
ellisz Aquarium Advice Addict Moderator Emeritus Join Date: Sep 2003 Location: Indiana USA Posts: 2,676 Images: 9	The one Mag 7 I have has screws in it. They have not rusted yet. Maybe they are titanium? My Titanium heater is doing well __________________ 180 gal Display, 100 gal basement sump, 33 gal refugium, 3x250 MH, 2x160 VHO actinics, zoos, some softies, LPS & lots of acros and other SPS. 100 gal prop tank plumbed into main system w/ 2x96 PC lights and 1x150 MH,

08-27-2005, 05:24 PM	#16
Phyl Aquarium Advice Addict Moderator Emeritus Join Date: Oct 2004 Location: NJ Posts: 2,107 Images: 30	We swapped out our 12 impeller for an 18. Man is that moving water now! It is the perfect flow. My fish and corals are thrilled with the increase. Quiet as a church mouse too (so far, lol). __________________ Phyllis Join the NJ Reef Club Today! Saving the world's reefs one living room at a time! Next meeting: Eric Borneman, Dana Riddle, & Charles Mazel on October 25, 2008

08-28-2005, 01:06 PM	#18
Hara Aquarium Advice Addict Moderator Emeritus Join Date: Aug 2002 Location: Louisiana Posts: 6,867 Images: 33	I have been having problems with my little giant pump. Is there any reason that I couldnt use 2 mag pumps instead of the one little giant? It would be more flow and there would not be any rigging of the fittings.... __________________ ~~~~~Hara~~~~~~ View My Tanks Visit FantasyReef.com's Databases!

08-12-2005, 01:37 PM	#13
nsu7 Aquarium Advice Activist Join Date: Jun 2005 Location: Murrieta, CA Posts: 192 Images: 6	Cool, good info. What about the metal screws on the larger drives, will they corrode if the pump is used submerged ([acronym:0a7ff74580="Saltwater"]SW[/acronym:0a7ff74580]...) I think I'm just going to return my 1200 after I replace the cracked pump cover for a 1800 (still w/in 60 days)

08-12-2005, 04:30 PM	#15
nsu7 Aquarium Advice Activist Join Date: Jun 2005 Location: Murrieta, CA Posts: 192 Images: 6	I emailed Danner about the screws, it'll be interesting to see what they say.

08-27-2005, 06:17 PM	#17
nsu7 Aquarium Advice Activist Join Date: Jun 2005 Location: Murrieta, CA Posts: 192 Images: 6	Sweet, I just went ahead and exchanged my 12 for an 1800 to get the full effect since I need alot of flow for my carbon tube bio bed project. On another note, I finally got a response from danner about the screws. They are stainless steel. I have heard even the highest quality stainless steel will rust... But I dunno...

08-28-2005, 01:09 PM	#19
nsu7 Aquarium Advice Activist Join Date: Jun 2005 Location: Murrieta, CA Posts: 192 Images: 6	I know, I've thought about adding a second pump to mine in case I still don't have enough flow. I wonder what would happen if you put two inline. Continuous flow problems?

08-28-2005, 01:11 PM	#20
Hara Aquarium Advice Addict Moderator Emeritus Join Date: Aug 2002 Location: Louisiana Posts: 6,867 Images: 33	I wouldnt put the two inline...there are 2 returns and each would get its own pump. __________________ ~~~~~Hara~~~~~~ View My Tanks Visit FantasyReef.com's Databases!

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