Item description is as follows:
“Using this item on a container full of water will purify the water using layered charcoal. Once the charcoal has purified enough water, it will become unusable and can be disassembled and recycled. Water taken from uncertain sources like a river may be dirty.”
Without ever having used this item, by this description it is unclear as to whether or not the final product is actually clean drinkable water when “taken from uncertain sources like a river”
My suggestion would be that the description be altered to better reflect the end product by removing the last sentence entirely (provided it is not required).
We already know the water is dirty because we are using a purifier on it.