how do you purify hunters horn in reagnent valley?

ok im here with the horn in my inventory.. and im going to the waterfall and nothing happens... i try to equip it but it wont go into any of the slots.. what do i do?

How did you get through all those spawns? I tried for an hour and always died when I was oh-so close..

hold down ALT and look to see where the spring is.. then double click it

Head slowly towards the spring, and kill all the enemies surrounding the stream. Then hold ALT (like Vampyre said), double click on the healing spring, run to it, make sure you log is updated, and run for your life outta there.

monsters were easy.. just figuring out the quest was stupid.. but thanks

I tried dropping the item in the water before I realised that I had to click on the name of the spring.