hey y'all,

dummy needs help again...........lol

my 2 yr old son has a small swimming pool that i let him play in while i
work in the garden. it is 8x5 and only about 4 inches deep. was
wondering this:

is there anything i can add to the water (besides chlorox) to keep the
mildew and algae from building up in it? i need something that will be
gentle to his skin. currently, i am draining the pool and cleaning it,
then filling it back up again the next time i need to work in the
garden. with the drought, i need to cut it back on water use. does
anyone have any suggestions on what i can use to let the water last a
few days before i need to drain and clean again?

thanks,
rae