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Old 07-13-2010, 11:53 AM   #1
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Fixing a sump pump

I recently had the main pump in my 150G SW tank fail me, and right now I'm running on a backup pump (which sucks compared to this one). I've tried taking it apart, cleaning it, etc. and the conclusion I've come to is that the pump should be easily repairable but I just can't do it (I'm a software guy, not a hardware guy :p)

Anyways, I'm wondering what type of place I can take it to to have someone who knows what they're doing fix my pump. I really don't want to spend $100+ on a new pump, and I'm sure it would take a qualified person 10 minutes at most to fix it. Has anyone ever dealt with this before?

About the pump: it's a magnetic drive pump (I don't have it in front of me, sorry) and everything seems to work OK, except when I put the casing and everything back on, the part that spins like crazy gets caught on something and craps out. Sometimes I can get it to work, but then I turn it off and back on and it gets caught on something and it's all over. I can get more details if you want them, but I won't be home until tonight. Thanks for your help
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Old 07-13-2010, 12:32 PM   #2
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Wondering if it's the impeller. That white palstic thing that turns and pushes water. In my Mag pump, that impeller simply cracked. Couldn't really see it well, but with some fiddling, I could tell.

I'd also like to urge everyone to always have an extra impeller on hand for time like that, particularly when you rely on one pump to move water from the sump.
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Old 07-13-2010, 03:25 PM   #3
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Yep, sounds like a broken impeller. <The spinning part!>

Take the impeller out & look at it closely. If it is bent or broken, pop a new one in & you are done.

If the impeller looks fine, sometimes it is hard water deposits between the impeller housing & impeller magnet. Soak both parts in vinegar or CLR to clean & the impeller can spin freely.
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Old 07-13-2010, 03:55 PM   #4
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All right, I'll try replacing the impeller. I've tried soaking everything in vinegar and that didn't change much. That means I need to find an impeller for this pump, which may be an adventure. I'll see if I can't find one...
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Old 07-14-2010, 11:12 AM   #5
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Word to the wise again...

Keep an extra impeller handy for your pumps.

Adam, what kinda pump is it?
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Old 07-14-2010, 11:24 AM   #6
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I ordered an impeller last night. If this fixes it, I'll definitely order a spare.

The pump is a mag 12, 1200 gph. My backup isn't even half that :-(
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Old 07-14-2010, 01:45 PM   #7
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Did you order two?
Though by the time this one breaks you'll be ready for a new pump.

So Adam, do you know how many programmers it takes to change a light bulb?
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Old 07-14-2010, 01:50 PM   #8
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I have a mag drive 7 and I keep an extra impeller and an extra impeller cover on hand. My mag drive was doing the samething and come to find out the cover was broke so the impeller was falling to the side and getting hung up!
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Old 07-14-2010, 02:01 PM   #9
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I only ordered one, I didn't know if it would work, and I might be ordering some other things from this place soon, but if it does, I'll definitely order an extra impeller. I've heard of some people who also keep an extra cover around, maybe I'll pick up one of those too. I'd be interested to know why my pump will break in another year, though...

No, Cmor, I do not know how many programmers it takes to change a light bulb.
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Old 07-16-2010, 07:00 PM   #10
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The impeller arrived today, and it's fixed the problem -- the pump works great now. Thanks for the tip, everyone.
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