Task: clean a green pool
Assumptions:
Clean a green pool using baking soda.
Steps:
Determine the amount of baking soda to add
Add baking soda to the pool
Spread across the pool's surface in wide arcs
Avoid dumping all the baking soda in one place
Wait for a few hours
Allow the baking soda to dissolve completely in the water.
Turn on the circulation system in the pool to help it disperse.