External pump reccomendations 400gph apprx

[Bryan]

I am using a QuietOne 3000 and is ok, doesn't leak. Only complaint is CA deposits can build up and stall the pump, so you need to clean the impeller assembly at least one a month.

[banditpowdercoat]

I have a 3000 inside my overflow, running my closed loop. Was thinking of upping that to 4000, and using the 3000 for the sump return. Good idea

[Bryan]

For the price I don't think you can go wrong.