3rd tank for boat lift location
 

Adding a 3rd tank to my lift for more capacity.

The 2 existing tanks are 32" dia.
The new middle tank is 24" dia.

What's the proper height position for the middle smaller tank: all 3 tops even, all 3 tanks on same centerline, or pushed down so all bottoms are flush.

Not sure if I mount it flush with the tops if I will have a problem with it burping being closer to the surface.

bottoms even