Internal return pump with no restart issues?

Eheim 1250/1260/1262 are very reliable pumps. People have had them in service for 20+ years.
 
40G sump is kind of small for a 210 if that is what you mean by 40G in sump. A 1262 would be plenty of return flow for a 210.
 
pmrossetti said:
sjm817 said:
Eheim 1250/1260/1262 are very reliable pumps. People have had them in service for 20+ years.


I think I need more flow than they can provide, no?
210g tank, 40g in sump
thanks
Click to expand...

Assuming you have appropriate sized powerheads in the tank, the sump should arguably see 1-2 times tank volume in flow. That being said, the Eheim 1262 is rated at almost 1000G/hr at 12' head. IMHO it is more than enough. As for the Eheim, never a start up issue and possibly the most reliable ever made.
Click to expand...
 
The 1262 is 900 GPH @ 0 head. You usually wind up with ~ 700 GPH with a decent plumbing setup which is plenty of return flow.
 
Midnightsun said:
pmrossetti said:
Assuming you have appropriate sized powerheads in the tank, the sump should arguably see 1-2 times tank volume in flow. That being said, the Eheim 1262 is rated at almost 1000G/hr at 12' head. IMHO it is more than enough. As for the Eheim, never a start up issue and possibly the most reliable ever made.
Click to expand...


It's rated at 900gph max. flow. not at 12' head. 12' is max head it can handle, the flow is nill. what will it handle at 7' is what I need, Is there a flow chart? I guess if it gives me 5- 600gph I'm ok?


to sjm, it's a 90g sump 1/2 full.
Click to expand...
 
7' might be kind of high for this pump. You would be more near the 500 GPH range if that.
 
sjm817 said:
7' might be kind of high for this pump. You would be more near the 500 GPH range if that.
Click to expand...

that's what I thought, too. I was looking at the WB5000. low watts 60 and probably about 900gph at my head. What do you think. I like the 60watts part. :)

I asked about their reliability on another thread but no feedback yet. thanks!
 
I'd get a mag drive 12 or even 18. I have an 18 and two 7's throughout my tanks. The mag 18 does 1800gph, 12 does 1200gph, so on....

I've been running them for a couple years with no issues. Extremely simple to take apart and clean. I start/stop them about 4 times a week while doing my maintenance, with no issues.
 
I just looked at my head loss chart for mag-drive pumps. At 8 foot of head, a mag-18 will do 1050gph. A mag-12 will do about 700gph at 8 foot.
 
MelloW33 said:
I just looked at my head loss chart for mag-drive pumps. At 8 foot of head, a mag-18 will do 1050gph. A mag-12 will do about 700gph at 8 foot.
Click to expand...
FYI That is a rating with 1.5" plumbing. It will be less with smaller dia plumbing
 
sjm817 said:
It will be hard to get long term reliability reports of the WB since they are so new, They seem like pretty good pumps. IME, low power high flow pumps typically do not handle head very well and tend to drop off pretty quickly, but IDK about the WB pump.

Here is another good option, an Askoll Laguna 1500.

http://www.marinesolutionsinc.com/catalog/p318/Askoll/Laguna-Max-Flo-1500/product_info.html
Click to expand...


thanks for the link. it looks the same as the ATB Flowstar 1500. Is it? 100watts not too bad. but 60 rocks.
 
Yes ATB Flowstar and Red Dragons are the same pumps. BTW, how are you calculating the 7' head? Be sure to include your sump water height in the calculation. You calculate from the top of the water level in the return section, not the bottom of the sump. If you have 12" of water in the return section of the sump, that counts as 1' less head.
 
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