Pump submersed or in line?
- Thread starter kahkaw
- Start date
pmrossetti
Active member
Yes, ruling out a weak link is a plus. Just because you run a sump doesn't mean you have to increase the risk. Minimize risk no matter which path you choose. That's all I'm saying. Love to all. 
pmrossetti
Active member
Hi k, There are pluses and minuses each way. I just think my pluses vs minuses are more critical. Good luck.
justinm0424
New member
If you're ever thinking about upgrading the pump run it externally. You can upgrade the pump and use it for everything and lower your temps. I'd much rather use external pumps than submerged ones because they are much better quality. The ehiem pumps go both ways but i'd set it up for external and upgrade if you want.
The only real risk of an external pump is the sump cracking or something from the hole in it. Also even though eheim's are water cooled pumps they should still run cooler setup external. I have a mag 7 pump and the outside is very hot which wouldn't be transferring the heat into the water.
The only real risk of an external pump is the sump cracking or something from the hole in it. Also even though eheim's are water cooled pumps they should still run cooler setup external. I have a mag 7 pump and the outside is very hot which wouldn't be transferring the heat into the water.
power boat jim
Well-known member
Putting the pump in the sump or not has no real bearing on the possibility of a flood. Most floods will occur due to either the tank drain becoming clogged or restricted and not allowing water to return to the sump fast enough. OR the pump shuts off and the tank drains too much water back to the sump either through lack of siphon prevention or poorly placed returns.
