Pump submersed or in line?

kahkaw

New member
I have an Eheim 1262 that will be used as the return pump on my new build. My question is, which is beter, In sump or in line?
 
Thank you, just trying to help. The most disheartening event for all of us is a flood. So I try to suggest all ways to minimize them. Love your tank and enjoy the hobby. Love to all. :)
 
Re: Pump submersed or in line?

<a href=showthread.php?s=&postid=15627346#post15627346 target=_blank>Originally posted</a> by kahkaw
I have an Eheim 1262 that will be used as the return pump on my new build. My question is, which is beter, In sump or in line?

Ive never had a leak caused by an external pump. Externals are generally far more powerful and add less heat to the water. Since your pump is either, it would probably be easiest to throw it in the sump.
 
I know people that have terrible leaks with external pumps. Even Iwakis. The fact is the risk is greater with external than internal. Sorry, I know external are sexier, bur riskier as well. Carry on. :)
 
I've used both internals and externals and never had a leak. With the 1262, I would run it in sump since it is a submersible. There is nothing to gain by running it external.
 
I would go inline...more room in the sump, less heat in the water, and you could always upgrade to a bit larger pump run multiple pieces of equipment off of it...in a way its making things more complicated in order to simplify.

I wouldn't worry about a leak, we use tanks with big holes drilled in them...adding an external pump isn't any different than your drain or return line.
 
I guess. I have plumbing from two overflows to the basement, external pump back up. Plumbing from the sump to the fuge, plumbing from the fuge to the sump, plumbing from the sump to the reactor and back. Plumbing to the water change system.

Nothing leaks. You can always run a sump-less system and have a guarantee of no leaks, but that is no fun. ;)

Tons of people run externals with no issue.

Running the Eheim external wont reduces heat. Its a water cooled pump internal or external.
 
WOW! Thank you all very much for the input. This is going to be a tough decision. I wanted it outside because of heat (But will this config. really have no affect on reducing heat?) and quite franky it will look pretty cool. But besides the heat reduction i really just would like it to function as best as it can. What about flow, better external or internal?
 
The pump is cooled by internal water passages. It will put the same amount of heat into the tank either way. Submerged, there is slightly less restriction on the intake, so the flow might be just a tad more, but nothing even noticeable.
 
Don't you care about safety. Flow won't be affected. Decide yourself. My priority is no floods. :) What's yours? It's your call.
 
<a href=showthread.php?s=&postid=15628453#post15628453 target=_blank>Originally posted</a> by pmrossetti
Great for all of you, but the risk of leaks is still greater. Sorry :)

Almost every single large tank has an external pump. Have you seen the size of those things? You'd need a rubbermaid just to keep it dedicated to just your pump. But were talking about an eheim here so I don't want to go off on to much of a tangent. Personally, I run both my pumps in sump. I would also like to point out though, that sumps can and do break as well.
 
pmrossetti, I assume you run a sumpless system. I'd be interested to see the setup of your failsafe flood proof system.
 
There are people who will tell you they wont run a sump because of the risk of a flood. Their argument is just as valid, probably more.
 
I think playing it safe in my case might be the best course of action. If heat and flow are not significantly affected it might be best to keep it in the sump. I am however confident in my ability to produce a leak free setup but you never know and ruling out a weak link is a plus.
 
Back
Top