As the topic said. I replaced my LQ with a Stenner peristaltic pump. Right now I have the Stenner 45MHP2 (3gpd) pump sitting on top of the LQ using it as the reservoir until the drum arrives. It's only been in service one day but it works fine. I got the black UV resistant tubing. The check valve threaded right into the piping where the inlet to the LQ went. I had and extra circuit on my pump timer so it runs the same time as the pump (8 hours per day).
I got the 3gpd unit, but I can change it to a 10gpd by just changing the #1 tube to a #2 tube. I'll let you know how things work out.
I have to say I was surprised at how little the flow was, even with the dial set on 10! it was literally drips. But then 3 gallons in 24 hours isn't very much