Should I replace my Mag-Drive 7 pump or just buy a new impeller?

[bodie]

I have a Mag-Drive 7 pump in my sump that serves as my return pump. I recently unplugged it to clean the tank and it made a humming noise when I plugged it back in, but it didn't pump any water. I shook it around a bit and it started working again, but it doesn't seem to be pumping as hard. This routine seems to happen whenever I unplug it for maintenance. I examined the impller and didn't notice any problems. I noticed that Mag-Drive advertises that their pumps have low maintenance because there is only one moving part (the impeller). My question is should I buy a replacement impeller for the pump or do I need to buy a new pump altogether?

Also, I didn't notice any obstructions in the return tubing that would've caused a reduction in water current so I'm pretty sure it's the pump...

 

[austinsdad]

I recommend ANYONE and EVERYONE have a back up impeller for their main pump. Don't wait until it goes bad to order one or look for a store that has it in stock.

I'd replace the impeller anyway if it were me. Try that first.

 

[Ziggy953]

I have 4 Danner Mag Drive pumps. I've never had that issue with any of mine. I would take it apart again and make sure the impeller is seated properly and that the O-ring around the faceplate isn't inside the pump. I agree with Ray though, it is always a good idea to have a backup! I keep a couple of spare pumps just in case as well as impellers for my main pumps.

 

[bodie]

Thanks for the advice. I checked everything again, but it didn't resolve anything. Considering I can't diagnose the problem, I suppose I should skip buying an impeller and just buy an entirely new pump.

Any thoughts on a more reliable brand or type of pump than mag-drive?

 

[Ziggy953]

What you have is one of the most reliable pumps on the market.

 

[bodie]

Thanks Ziggy! I suppose I will start with a replacement impeller and then if that doesn't work, I will buy a new Mag-Drive 7. I suppose worst case scenario is that I will have an extra impeller in case this happens again. I just didn't want to invest money into an inferior brand, but since you're saying it's reliable, I'll stick with it. I don't really have any experience with any other brand of pumps. Thanks again!

 

[jim692]

Did you try to contact the Danner Mfg. support line?
DANNER MFG HOMEPAGE

They may be able to help with your problem. After all they made the pump.

 

[bodie]

Good thinking jim692! I hadn't thought of that, but I'll give that a try before ordering anything. Thanks for the advice!