I looked at a lot of different counter weight options and they all work but I want to be able to have adjustability. Getting gas spring exactly right in my experience is 2 to 3 sets. I don’t have room to hang weight off the back. So I going to use torsion springs. My spindle is going to weigh 150 plus so I settled on overhead door springs. They will give me the adjustment flexibility that I’m looking for. I also going to use this 3/4 hp submersible pump for flood system.