On Sat, 23 Jul 2016 12:51:56 -0400, Dan Espen
wrote:

I think the problem is pool filter sand is probably not the right
grade for a sand box.

Maybe, but hard for me to imagine what difference any grade might make
to the process of filling a bucket with a plastic shovel.

The problem is if the sand is too fine a grade, it sticks to their
clothes and ends up being "dirt" when they track it inside.

I agree, the cat **** a sand box seems to collect is a lot more of a
health problem than heavily chlorinated filter sand.

The chlorine isn't going to hang around on that sand for long.

At least it starts clean.