Submersible????

Pennoyer · 09/09/2008, 09:38 AM

I have a Mag7 that is not working. Same thing has happened on almost all of the Mags I've had in the past. Pump powers up (hums) and the impeller rattles intermittently but won't actually pump water / spin. I used to be able to get it going by shaking it or lifting it out of the water and then re-submerging it, but now even that is not working. I am tired of replacing these pumps every two years or so. I've tried in the past to fix this by simply replacing the impeller on two larger models (Mag 9 and 24) but that didn't work. Do you have the same experience with Mags?

Any recommendation on a different brand of submersible to use? Sen 700 or Eheim 1260 or 1262 maybe? I use the pump to feed my skimmer and it runs through ~ 5' feet of HORIZONTAL (maybe only 1' of vertical) reinforced vinyl tubing before entering the reaction chamber of the skimmer. Looking for something with about 700gph.

TIA

sjm817 · 09/09/2008, 09:44 AM

Eheim 1260. Even though it is "rated" a bit lower in flow than a Mag7, in reality, it has a lot more flow and handles head a lot better. It is also a heck of a lot quieter. As far as reliability goes, they are extremely good.

AZDesertRat · 09/09/2008, 12:06 PM

Ocean Runner 2500 from www.customaquatic.com .

sjm817 · 09/09/2008, 12:35 PM

Since you are looking to upgrade to a reliable pump, go with the Eheim.

bandsaw2 · 09/09/2008, 12:50 PM

i use both mag and eheim
eheim last longer, run cooler, cost less to run
on the mag pump you might just need to replace the small washers
on the impeller shaft (there plastic)

09/09/2008, 09:38 AM	#1
Pennoyer Premium Member Join Date: Mar 2001 Location: New Orleans, LA Posts: 456	Submersible???? I have a Mag7 that is not working. Same thing has happened on almost all of the Mags I've had in the past. Pump powers up (hums) and the impeller rattles intermittently but won't actually pump water / spin. I used to be able to get it going by shaking it or lifting it out of the water and then re-submerging it, but now even that is not working. I am tired of replacing these pumps every two years or so. I've tried in the past to fix this by simply replacing the impeller on two larger models (Mag 9 and 24) but that didn't work. Do you have the same experience with Mags? Any recommendation on a different brand of submersible to use? Sen 700 or Eheim 1260 or 1262 maybe? I use the pump to feed my skimmer and it runs through ~ 5' feet of HORIZONTAL (maybe only 1' of vertical) reinforced vinyl tubing before entering the reaction chamber of the skimmer. Looking for something with about 700gph. TIA __________________ Serenity Now!! Current Tank Info: 90 gallon; Seq. 4200 return w/ 2 x 1" Seaswirls; Seq. 4200 w/ HD-4Way OceanM. CL; 2 x 250 DE ROIII's w/ Gies. 14.5k's on Icecaps; 4x48" T5HO's w/ Icecap SLR's on 2x660 Icecaps dawn/dusk; Geo 6x40" Ext. NW Skim; Jet 1 CR; PC-650 Chiller Last edited by Pennoyer; 09/09/2008 at 09:47 AM.

09/09/2008, 09:44 AM	#2
sjm817 On Yer left! Join Date: Sep 2004 Location: Northern VA Posts: 18,777	Eheim 1260. Even though it is "rated" a bit lower in flow than a Mag7, in reality, it has a lot more flow and handles head a lot better. It is also a heck of a lot quieter. As far as reliability goes, they are extremely good. __________________ - Scott

09/09/2008, 12:35 PM	#4
sjm817 On Yer left! Join Date: Sep 2004 Location: Northern VA Posts: 18,777	Since you are looking to upgrade to a reliable pump, go with the Eheim. __________________ - Scott

09/09/2008, 12:06 PM	#3
AZDesertRat Moved On Join Date: Jan 2002 Location: NW Phoenix Posts: 16,621	Ocean Runner 2500 from www.customaquatic.com .

09/09/2008, 12:50 PM	#5
bandsaw2 Premium Member Join Date: Nov 2007 Location: N.J. Posts: 143	i use both mag and eheim eheim last longer, run cooler, cost less to run on the mag pump you might just need to replace the small washers on the impeller shaft (there plastic)