"buffalobill" writes:

i appreciate the #3 tip about using the vacuum for a fake service
bottom drain. thanks! when the water is chilly the swimmers aren't
there to make a giant whirlpool by running around the inside perimeter
of the pool, to deposit dirt and leaves into the center like we ask
them to do at the end of the summer swimming day.

I've got a 24' round too.
I find just angling the outlet jet to the side creates enough
of a circular flow to draw most dirt to the middle.