Answer:
The water bottler should pay the brewer company an amount of money that is higher than $500 but lower than $600.
Explanation:
Under the Coase Theorem, parties must negotiate a mutually beneficial agreement without considering the original distribution of property rights.
This means that the water bottler will try to lower its cleaning costs, and the brewer is not willing to pay any of the $500 cost to clean the water. But if the water bottler offers the brewer more than $500 for it to clean the water, they will take the money since it would generate them a profit. And as long as the money given to the brewer is less than $600, the water bottler will be saving money.This way both will win.