Eheim 1262 pump...

[aasu03]

What are the pros' and cons' of this pump. Moreover, compare the Eheim to the beloved Mag 12 and Mag 9.5. I found the Eheim 1262 for $129.99 at www.drfostersmith.com

 

[aasu03]

Is this enough of a pump to have a 125g with a 6' head height? HELP'''

 

[patryuji]

You need the density of the water and then you can calculate the pressure at the pump and go to the manufacturer to find flow rate figures at X psi.

Example: Fresh water at 25.6 C (~78 F) has a density of 62.23 lb/ft^3. (62.23 * 6)/144 = 2.6 psi at the pump. If using saltwater, multiply the density for fresh water * the specific gravity.

 

[aasu03]

Um... In English, does that mean it would work supposing normal tank conditions. I don't have my tank up and running yet. In fact I am trying to get all the stuff before I check my water...

 

[patryuji]

Age? -> so I can get a rough idea of education level to know how to appropriately tailor a response. I don't see one in your profile.

 

[patryuji]

Here I found the easy answer for you (check with the manufacturer as suggested):
Eheim Asia Pacific

It can handle the height, and delivers 900gallons per hour.

 

[cmor1701d]

Go the site you linked (Drs.F&S) lookup the pump and cliick on more information. You'll find a chart for flow rates that shows this model has about 590 gph at 6' head height.

I'm assuming you want this as a return pump from a sump or similar. In that case you need to match the pump output to the overflow. If this is a pre-drilled reef ready tank with two overflows (e.g. AGA 125RR) the overflows are probably rated at 600gph each. This pump would be fine, though you could go larger.

 

[aasu03]

Thanks, I only have a 125g tank and 3 Koralia #4s at this point. I am attempting to create a marine tank. So any advice is helpful. I plan to have the tank drilled soon. So any in depth technical jargon is WAY above my head.

 

[cmor1701d]

How many drains are you drilling and what size are they. Each drain will require a bulkhead, and each bulkhead will only allow x gallons/hour to drain through it depending on the size of the hole. I don't know the calculation but I'm suer it can be found on the web. Unless of course someone who knows chimes in.

 

[aasu03]

I haven't got that far yet... I plan to take my tank to a LFS so they can drill and install overflows. I would guess they would use a 1" hole.

 

[cmor1701d]

Check out the Minimum Drain / Overflow Size Calculator. You need to know what size hole you are drilling so you can match a pump to the volume of water that can flow through the drain.