External pumps

[eagle9252]

I’m going to have to do something to remove some of this heat before it gets fully into the summer. I have an external pump now but where the sump is placed is not good for the pump it’s backwards. I can either spin the sump but then this makes my bean animal drains run horizontally about 3feet and that taboo from what I under stood.

I’m trying to keep the pump on the other end as I really don’t want it sitting beside me running but if I have to I will. I know an external pump is just that a pump not a sucker and has to have plenty of water to gravity feed it.

Could I come out the front left side with a 1” BH and then street elbow and increase to 1-1/2 or 2” pipe and run it about 5 feet to the pump. I would that be enough volume to not allow it to run dry.

The mfg pic kinda show this. This is the pump I have Gen-X PCX-40. I plan to also run the reactors off of this pump.

 

[johniii]

I work on commercial lobster tanks all the time. They come out of a sump with 1 1/4" pipe then 90 into the pump inlet about 12" total length on the pipe from sump to inlet. The pumps are little giant mdsc 40 think they are rated at 800 gph. . Never had a problem with cavitation. And this is in a store where they consitantly let the water run low.
I think you will be ok. The pumps do create suction after they are primed and running.