Mag Drive Gaskets ????????

falconut · 07/31/2006, 06:05 PM

I've been using a Mag Drive 7 for a year and a half as a closed loop. It hangs on the back and works fine. But I recently had to remove the cover to replace a worn impeller and now it drips everytime I put it back together.

None of my LFS's sell the gasket/cover combo in my area. So, I guess will have to mail order a $5 gasket/cover combo for $8 shipping. Seams like a waste of money. Apparently they don't sell just a gasket for these pumps.

Again does anybody know if there is a trick to putting it back together to make it not leak? It was taken apart about 2 months ago and only leaked a little, but know it really drips.

Any ideas will be greatly appreciated. Thanks.

locofish · 07/31/2006, 07:03 PM

I have 2 mag drive and both of the leaked from the begining, I just used silicone to sealed them. No problems after that.

missileman · 07/31/2006, 07:15 PM

Another great place to check is your local hardware store. They should have O-rings that will fit your pump, and it will save you money. Usually for items like these (O-rings, gaskets, etc.), I'll check there first.

Good luck!

falconut · 07/31/2006, 08:05 PM

Thanks. I will try Lowes and HD tomorrow ans silicone if I can't find any.

csb · 07/31/2006, 08:34 PM

On my Mag 5, I need to be careful how I put the O-ring back on the unit... if I slide it over the impeller housing, it will twist. These twists cause it to be out-of-round and it will leak. If I take my time, I can get the O-ring back on without being twisted... no leaks because it will seat properly.

Finland · 07/31/2006, 08:51 PM

I had the same problem with my mag12. A little aquarium silicone and good as new.

rickh · 08/01/2006, 08:44 AM

All my Mags leak like crazy when used externally. I tried to replace the O ring but it still leaked. When you use silicone do you remove the O ring and use only silicone or just put the silicone on the O ring and put the pump back together?? Even if this stops the leak--I don't know if I will trust it to not start leaking again.. RR

falconut · 08/01/2006, 12:48 PM

csb - that is the problem I was having. The last time I put the 'O' ring back it must have twisted. I can't get it to go back now, since it seams its molded that way now.

I was able to locate a round 'O' ring, which fits my pump perfectly. It passed the pressure test of me blowing into it with the end blocked and water in it, without leaking, so I may be set. We'll see if it works once I get it back up and running. I guess if it still leaks, I'll have to use some silicone.

Thanks again for the suggestions.

csb · 08/01/2006, 01:15 PM

Let us know if that works... the stock mag o-ring is probably the culprit of most leaks!

dhoch · 08/01/2006, 01:26 PM

THese guys have em up to the 12 I belive: (they come with the impeller kit)

http://www.aquariumpros.com/c-SUP.html

Drs. Foster and Smith has them as well

ANd here is another link:

http://www.petsolutions.com/Default....temID=25012575

Dave

poedag · 08/01/2006, 01:29 PM

you could also try some gasket maker, comes in a red bottle from loctite, i think it's like #518 or #520

falconut · 08/03/2006, 05:27 AM

I put it back together with the 'O' ring and it only has a very slight drip. I just put a small tray under it and it only seams to get a few drops overnight. I am hoping the saltcreep may seal it up, like it used to do to my siphon break. We'll see.

07/31/2006, 06:05 PM	#1
falconut Registered Member Join Date: Dec 2003 Location: Blackwood, NJ Posts: 3,813	Mag Drive Gaskets ???????? I've been using a Mag Drive 7 for a year and a half as a closed loop. It hangs on the back and works fine. But I recently had to remove the cover to replace a worn impeller and now it drips everytime I put it back together. None of my LFS's sell the gasket/cover combo in my area. So, I guess will have to mail order a $5 gasket/cover combo for $8 shipping. Seams like a waste of money. Apparently they don't sell just a gasket for these pumps. Again does anybody know if there is a trick to putting it back together to make it not leak? It was taken apart about 2 months ago and only leaked a little, but know it really drips. Any ideas will be greatly appreciated. Thanks.

07/31/2006, 08:05 PM	#4
falconut Registered Member Join Date: Dec 2003 Location: Blackwood, NJ Posts: 3,813	Thanks. I will try Lowes and HD tomorrow ans silicone if I can't find any. __________________ 180 Gallon FOWLR, 40 Gallon Sump and 10 Gallon Refuge. (2) OceanRevive S026 LEDs, ASM G2 Skimmer & SCA-302 Skimmer. Setup since July 2017.

08/01/2006, 12:48 PM	#8
falconut Registered Member Join Date: Dec 2003 Location: Blackwood, NJ Posts: 3,813	csb - that is the problem I was having. The last time I put the 'O' ring back it must have twisted. I can't get it to go back now, since it seams its molded that way now. I was able to locate a round 'O' ring, which fits my pump perfectly. It passed the pressure test of me blowing into it with the end blocked and water in it, without leaking, so I may be set. We'll see if it works once I get it back up and running. I guess if it still leaks, I'll have to use some silicone. Thanks again for the suggestions. __________________ 180 Gallon FOWLR, 40 Gallon Sump and 10 Gallon Refuge. (2) OceanRevive S026 LEDs, ASM G2 Skimmer & SCA-302 Skimmer. Setup since July 2017.

08/01/2006, 01:15 PM	#9
csb Registered Member Join Date: Jan 2006 Location: New Hampshire Posts: 541	Let us know if that works... the stock mag o-ring is probably the culprit of most leaks! __________________ Winter ski bum, summer reef bum. Tank pics at http://picasaweb.google.com/snojrnl Current Tank Info: 30g mixed reef

08/01/2006, 01:26 PM	#10
dhoch Registered Member Join Date: Mar 2004 Location: Maryland Posts: 1,762	THese guys have em up to the 12 I belive: (they come with the impeller kit) http://www.aquariumpros.com/c-SUP.html Drs. Foster and Smith has them as well ANd here is another link: http://www.petsolutions.com/Default....temID=25012575 Dave __________________ Check out my tanks website... click the red box above my post Current Tank Info: 180 gal Acrylic, 29 gal refugium, 40 gal sump, Mag 18 -> 2 Sea Swirls, Tunze 6100, 8 x 80W overdriven T5 Lights, ASM G4 skimmer

07/31/2006, 07:03 PM	#2
locofish Registered Member Join Date: Jun 2006 Location: Puerto Rico Posts: 61	I have 2 mag drive and both of the leaked from the begining, I just used silicone to sealed them. No problems after that.

07/31/2006, 07:15 PM	#3
missileman Registered Member Join Date: Sep 2004 Location: Omaha NE Posts: 11	Another great place to check is your local hardware store. They should have O-rings that will fit your pump, and it will save you money. Usually for items like these (O-rings, gaskets, etc.), I'll check there first. Good luck!

07/31/2006, 08:34 PM	#5
csb Registered Member Join Date: Jan 2006 Location: New Hampshire Posts: 541	On my Mag 5, I need to be careful how I put the O-ring back on the unit... if I slide it over the impeller housing, it will twist. These twists cause it to be out-of-round and it will leak. If I take my time, I can get the O-ring back on without being twisted... no leaks because it will seat properly. __________________ Winter ski bum, summer reef bum. Tank pics at http://picasaweb.google.com/snojrnl Current Tank Info: 30g mixed reef

07/31/2006, 08:51 PM	#6
Finland Registered Member Join Date: Mar 2005 Location: Wisconsin Posts: 617	I had the same problem with my mag12. A little aquarium silicone and good as new.

08/01/2006, 08:44 AM	#7
rickh Registered Member Join Date: Aug 2005 Location: Lost_in_Michigan Posts: 1,306	All my Mags leak like crazy when used externally. I tried to replace the O ring but it still leaked. When you use silicone do you remove the O ring and use only silicone or just put the silicone on the O ring and put the pump back together?? Even if this stops the leak--I don't know if I will trust it to not start leaking again.. RR

08/01/2006, 01:29 PM	#11
poedag Registered Member Join Date: Apr 2003 Location: Santa Barbara Posts: 307	you could also try some gasket maker, comes in a red bottle from loctite, i think it's like #518 or #520

08/03/2006, 05:27 AM	#12
falconut Registered Member Join Date: Dec 2003 Location: Blackwood, NJ Posts: 3,813	I put it back together with the 'O' ring and it only has a very slight drip. I just put a small tray under it and it only seams to get a few drops overnight. I am hoping the saltcreep may seal it up, like it used to do to my siphon break. We'll see. __________________ 180 Gallon FOWLR, 40 Gallon Sump and 10 Gallon Refuge. (2) OceanRevive S026 LEDs, ASM G2 Skimmer & SCA-302 Skimmer. Setup since July 2017.