Two days before this happened my quiet one 4000 shutoff and killed 26 lbs. of tilapia. I thought that brand was a good one, but still made in the chinas. The quiet one was a replacement for a danner mag drive that had a plastic piece break off where the impeller does its thing. Both of these pumps were less than a year old and considered top of the line in submersible pumps.
We were considering offering the lil giant external (one of the only made in America options) with our systems, but didn’t know how to weather proof them and we had concerns about plumbing them through the side of the tanks.

The simple green is helping.