Cybe R. Wizard wrote:
Today we've had one, a real drencher ... This
morning I noticed that the upper dam was running over. The bottom dam
was almost full. As I watched, the overflow from the uper dam filled the
lower dam(which has a four inch drain that ends in an upflow pipebelow
the dam) to overflowing, rushed into this drain, and started shooting up
from the upflow pipe below the dam with enough force to fire a four inch
column of water three feet high above the pipe. It made the prettiest
bell fountain I've ever seen!

Handy little DIY water feature, eh?
--
zookeeper