Here are some photos so you you can better understand what I mean by sled.The return pump is a Skimz Leopard 160. This is an AC pump. I did not run any silicone tubing between the pump and the return line because the pump has silicone feet and I have set it on to a custom made "sled" to eliminate vibration transfer. If you look closely at the return line you will see that there are not any clamps on the return line plumbing from the return pump, all the way to the edge of the stand. The return is floating and is only supported in three places. Two of those are where it exits the stand, the third is the pump itself. This minimises contact points, vibration, and noise. Because the return pump is a support, I can not have any soft tubing above it.
Basically, I have moved the cushion to the bottom of the pump.
Sorry the pump is dusty, I only pulled it out to demonstrate this.
This is my "backup" pump that I am using for a photo opp here. This pump is for when the primary pump fails.
The sled is machined out of UHMW which is an industrial plastic. Super tough, super slick, reef safe, and nothing will stick to it; not even superglue.
Of course I have a sled for each side to even things out; just not in this photo...