Dry/Moated Tank

["Madan Subramanian" <madans at hathway_com>]

One sureshot way of doing this without any of the buoyancy hassles is to
construct just the 4 vertical walls of the smaller tank that is to be placed
inside the larger tank separately, lower it and position it inside the
larger tank and glue the vertical sides of the smaller tank to the bottom
pane of the larger tank. No trouble with buoyancy then. The vertical walls
of the inner ( moated tank ) should be the same thickness of the Larger
outer tank. The height can be the same or more.

Madan Subramanian
Bangalore, India.
madans at hathway_com
madans at satyam_net.in