Will Eheim 1262 be a good replacement pump?

[jacmyoung]

I currently use a submersible (no room for external) Mag 12 utility pump rated at 1,200 gph at 0 and maximum head of 15', to power a 115g tank with 20g sump/fuge. My lift is 5' plus all the elbows and turns and through an UV filter, my guess is my total head is around 10'. The Mag 12 is providing nice flow. The pump is rated at 110w I believe.

Except that it raises my tank water by a good 10 degrees compared to the room temp. I have heard good things about Eheim but the closest pump I can find is the 1262, rated 80w, 900gph and max head of 11'.

It will likely reduce the tank temprature with 30w less electric use, but how about flow? Anyone use this pump against a similar head pressure with a good flow?

Seems to me for my application, all the similar pumps I can find run at around 110w, which I assume will have the similar heating effect as the Mag 12?

 

[d4a2n0k]

Eheims are great pumps, very reliable. If you are worried about flow, look at the Quiet One pumps. IME, the Quiet Ones run cooler than the equivelant sized MAG pumps.

 

[jacmyoung]

Which Quiet One pump would you say to match the flow of the mag 12? I checked out the 4000H, it seem to run the same 110w, would that run as hot as the Mag 12?

 

[d4a2n0k]

I would go with just the 4000 model, not the high head version. The 4000 runs at 50 w, the MAG 12 runs at 110 w. Less than half the power consumption for slightly less flow.

The Quiet Ones have a 1" input/output whereas the MAG 12 I think has a 3/4" so you might have to add a piece to your plumbing to make it fit.

Do you have any powerheads in the tank or any additional flow?

 

[jacmyoung]

I just removed my Hegan 950 powerhead (27w) from the tank to reduce heat addition. If the 4000 works, I may have to put the powerhead back in to increase the flow, which also will add heat.

I have thought of a Tunze 6000 but was afraid it will blow my tank all over since I don't need high current in the tank.

 

[d4a2n0k]

What are the dimensions of your tank? I have LPS and softies in my tank with 2 x 6000's and they seem very happy.

 

[d4a2n0k]

Also, even if you dont get the controller, the 6000 has a speed control on it so you can slow it down if you feel its too much.

 

[jacmyoung]

Well just looked at the price of a 6000, out of question at this time especially if I sink some money into an Eheim pump.

Maybe a 4000 is a good bet, if not working out at least I am not out too much money. At 50w even if I have to add the powerhead back in would be 75w total, much less than 110w.

 

[jacmyoung]

Just replaced my Mag12 with an Eheim1262. The 1262 has slightly less flow but not by much, as quiet as Mag12, but I have not seen my tank temperature pattern change much.

I had expected the 1262 would run much cooler. Will give it a week or two to settle down and find out.

 

[jacmyoung]

The 1262 is running at about 1.5 degree cooler (tank water) than the Mag12 now. Not as much as I had hoped but not much can do if you are limited to a submersible pump.

 

[sjm817]

All submersible pumps will transfer 100% of the heat generated to the water. You went from 110W with the Mag to 80W with the Eheim, a savings of 30W. I wouldn't expect a huge difference. You have the right idea though. Look at all the pumps/powerheads and see where you can save some wattage here and there. It all adds up.

 

[CW from the OC]

I was running a mag 9.5 on my tank as a temporary pump (the previous Sen 900 finally died after 5 years, it is a good value IMO).

Yesterday I picked up an Eheim 1262. I put the 1 inch intake nipple it came with on the output side, and plumbed 1 inch hose up to a total of three 90 degree elbows to go over the side of the tank to a 3/4 in nozzle.

I cranks! Much more flow than the mag 9.5 or the Sen 900. Others have posted that most pump manufacturers rate their pumps with oversized piping and other "optimal" condidtions that will not be present in a typical setup. Whereas Eheim seems to accurately rate their flow. From my observations, I have to agree! I'm very happy with the performance. And Eheim has a great reputation for long term performance.

I think it is plenty of flow through the sump for a 120 gal tank. Put in a closed loop, Tunze streams, or the upcoming Icecap Vortecs and you are good to go.

 

[jacmyoung]

The 1262 certainly has enough flow for a 120g return pump.

I did not use the hose adaptor came with the pump, rather used a 3/4" pvc male adapter since my plumbing was already set with 3/4" pvc piping, it was no sweat.

If it is close to Mag12, then it will be much more than Mag9.5.

I needed a backup pump for quite some time, now I have my Mag12 as the backup.