I have a Jabao DC pump and really like it, it has been running 3 months.
Prior to the I have used rio pumps.
I like the flow control you get with the DC pumps, you get a lot more control and don't have to use back pressure to solve for to much mater, you just turn the pump down.
I only have the return line being fed off of the pump, I'm not running anything else on it.
I'm running my old rio to power my reactors.