How to seal this magdrive? Any idea?

[albert2k]

I am going to use it in my new 180 for a closed loop. But when I finish the fill the aquarium and tried to run the closed loop, the pump break here, see the photo.

[Matt Rise]

OOOPS! Too much Teflon Tape and overtightening the fitting! I would look for a new volute, don't know if I'd risk trying to repair that. If it's being used externally I wouldn't be able to sleep well at night.

[albert2k]

Originally posted by Matt Rise
OOOPS! Too much Teflon Tape and overtightening the fitting! I would look for a new volute, don't know if I'd risk trying to repair that. If it's being used externally I wouldn't be able to sleep well at night.

this pump are going extarnal but over the refugium in case of this happen again. I want to fix this until I can buy an external one. You know all of this days are holliday.

anyone have one good idea to fix this?

[firedogg2]

Maby try liquid plastic. It would make your conection perminit but it may work for the mean time. You can pick it up at your local hardwear store or an autoparts store. Also make sure you rough up where your going to be fixing to make a good surface to bond with the liquid plastic.

[Putawaywet]

JB weld 2-part epoxy, and a couple stainless hose clamps might do it. But even then, no guarantees. At best it might buy you a few days of time.

Brett

[RONCGIZMO]

You can buy a new part for about 10 bucks...I would do that..In fact I just did...Try a garden center that sells pond supply's

[Indyws6]

Greetings...
I successfully repaired a similar problem on the lid of a swimming pool filter that had to withstand much higher pressures. As mentioned in previous posts, there are no guarantees, but it's certainly worth a try. I would:

1) CAREFULLY spread the crack open enough to be sure you can completely clean it. You can pry it open using a wooden dowel or other blunt item. The idea is to give yourself room to clean the surface without damaging the internal threads.

2) Mix a small amount of 30-minute epoxy (5-minute would be just as strong but provides less time for positioning and clamping). You can get the epoxy at "home" stores...

3) Use the epoxy sparingly, but be certain to cover both sides of the face of the crack. A toothpick might be useful for getting the epoxy into the narrow end of the crack.

4) Remove whatever you were using to spread the crack open, wrap the outside with a few layers of paper towel and then clamp it until the epoxy completely sets. I would use two hose clamps side-by-side to spread the load out evenly. Be careful not to overtighten the clamps but make sure they are good and snug. Wipe any excess epoxy from the inside of the threaded area using paper towels and isopropyl alcohol.

Although the epoxy will cure in 30 minutes, I would wait at least two hours before trying to reassemble and use the pump. Remove the paper towels but re-clamp the housing before tightening a new pipe thread fitting in place. The crack will always be a weak point and the clamps will help prevent it from cracking again in the same place. Use a generous (but reasonable) amount of teflon tape and tighten the fitting only as much as needed to prevent leaks.

Good luck - I hope this helps...

[nano_angel]

premium aquatics has them for like $7

[albert2k]

I use stainless hose clamp and only drops go out, now I add 2 part epoxy and when the epoxy cure, I will use some silicon to be sure that the problem gone almost until I can buy an external pump.

[hllywd]

honestly I don't think you have a chance of fixing it for any period of time. If you have to go that route I'd try the JB Weld idea. That stuff even surprises me sometimes (I fixed a cracked block on a Sears rototiller about ten years ago.... and it's still holding strong ). The safe way it to purchase a new volute housing any then you have your external pump.

Tim

[albert2k]

Originally posted by hllywd
honestly I don't think you have a chance of fixing it for any period of time. If you have to go that route I'd try the JB Weld idea. That stuff even surprises me sometimes (I fixed a cracked block on a Sears rototiller about ten years ago.... and it's still holding strong ). The safe way it to purchase a new volute housing any then you have your external pump.

Tim

I'm going to buy a new volute but until this cames I already fixed temporary, thanks for the advice.

[stugray]

I had that happen to me in the exact same spot. Replaced the VOlute for under $10 BUT after looking closely at the original that broke, there was a flaw in the casting where it cracked.

I imagine that if yours is the same case, MAG ( Danner ) will replace it for free.

http://www.dannermfgparts.com/PartsS...r+02722&Page=1

I also learned to never use tape on those joints. I always use teflon paste now.

Stu

[H20ENG]

Lifereef Ca reactors used to come with Mag 2s. They glued a ring of PVC pipe over the inlet fitting to prevent this crack. I'd get a new volute, find the pipe that fits it pretty close, then epoxy it on there.

Then, like Stu said, paste, not tape.