Need help with Mag Pump Impeller

rdmpe · 09/10/2008, 05:55 PM

Howdy,

I have a mag 9.5B according to it's label. I pulled the impeller out of it and was going to swap a new one in, but the new one, also labelled as for a 9.6B, is 1/4" or so longer than the old impeller! I have two replacement impellers and both are the longer type.

Does anyone know whether the 9.5B impeller is longer or shorter than the 9.5A impeller?

Thanks!
Randy

mg426 · 09/10/2008, 06:19 PM

I believe that this is something to do with when the pumps were manufactured. I seem to recall reading something about this.

mg426 · 09/10/2008, 06:21 PM

Try looking here, it should be helpfull http://www.drsfostersmith.com/produc...15&pcatid=4715

rdmpe · 09/10/2008, 06:56 PM

The thing is, I have two different impellers here and don't know for sure which one is for the model A and which is for the model B. One is longer than the other. I don't know how I ended up with two different size impellers...

mg426 · 09/10/2008, 08:45 PM

One of them should fit the pump that you have. mabe try calling drs foster and smith, they have helped me a time or two.

rdmpe · 09/11/2008, 09:41 AM

Well, I heard back from a helpful guy at www.pondliner.com who says that the mag 9.5B impeller is approx. 3/4" longer than the mag 9.5A (older) impeller.

So I don't know where I got the shorter impeller since both of my pumps are 9.5B's. I bought both used, so one must have come with the wrong impeller installed. It seemed to be working but maybe was not in as tight as the newer one...

09/10/2008, 05:55 PM	#1
rdmpe Registered Member Join Date: Apr 2003 Location: Central Florida Posts: 3,737	Need help with Mag Pump Impeller Howdy, I have a mag 9.5B according to it's label. I pulled the impeller out of it and was going to swap a new one in, but the new one, also labelled as for a 9.6B, is 1/4" or so longer than the old impeller! I have two replacement impellers and both are the longer type. Does anyone know whether the 9.5B impeller is longer or shorter than the 9.5A impeller? Thanks! Randy

09/10/2008, 06:19 PM	#2
mg426 Registered Member Join Date: Jan 2006 Location: maryland Posts: 6,923	I believe that this is something to do with when the pumps were manufactured. I seem to recall reading something about this. __________________ I found a way to make a small fortune running a reef tank. Start with a large fortune. Unofficial President of the SEACLONE haters club Current Tank Info: 125 mixed reef 110 lbs LR, 1x250watt XM 20K MH 2x175watt XM 20K MH on Magetics 2X96 watt actinic PC, 220 watt VHO actinic, 30 gallon refugium, closed loop system powered by Sequence Dart MSX 200 skimmer 38 gallon sump, Oceansmotions squirt

09/10/2008, 06:21 PM	#3
mg426 Registered Member Join Date: Jan 2006 Location: maryland Posts: 6,923	Try looking here, it should be helpfull http://www.drsfostersmith.com/produc...15&pcatid=4715 __________________ I found a way to make a small fortune running a reef tank. Start with a large fortune. Unofficial President of the SEACLONE haters club Current Tank Info: 125 mixed reef 110 lbs LR, 1x250watt XM 20K MH 2x175watt XM 20K MH on Magetics 2X96 watt actinic PC, 220 watt VHO actinic, 30 gallon refugium, closed loop system powered by Sequence Dart MSX 200 skimmer 38 gallon sump, Oceansmotions squirt

09/10/2008, 08:45 PM	#5
mg426 Registered Member Join Date: Jan 2006 Location: maryland Posts: 6,923	One of them should fit the pump that you have. mabe try calling drs foster and smith, they have helped me a time or two. __________________ I found a way to make a small fortune running a reef tank. Start with a large fortune. Unofficial President of the SEACLONE haters club Current Tank Info: 125 mixed reef 110 lbs LR, 1x250watt XM 20K MH 2x175watt XM 20K MH on Magetics 2X96 watt actinic PC, 220 watt VHO actinic, 30 gallon refugium, closed loop system powered by Sequence Dart MSX 200 skimmer 38 gallon sump, Oceansmotions squirt

09/10/2008, 06:56 PM	#4
rdmpe Registered Member Join Date: Apr 2003 Location: Central Florida Posts: 3,737	The thing is, I have two different impellers here and don't know for sure which one is for the model A and which is for the model B. One is longer than the other. I don't know how I ended up with two different size impellers...

09/11/2008, 09:41 AM	#6
rdmpe Registered Member Join Date: Apr 2003 Location: Central Florida Posts: 3,737	Well, I heard back from a helpful guy at www.pondliner.com who says that the mag 9.5B impeller is approx. 3/4" longer than the mag 9.5A (older) impeller. So I don't know where I got the shorter impeller since both of my pumps are 9.5B's. I bought both used, so one must have come with the wrong impeller installed. It seemed to be working but maybe was not in as tight as the newer one...