The Amazing Aqua Cura ! The Amazing Aqua Cura ! is a " Fallout 3 " side quest that is added to the game in the " Broken Steel " add - on . Detailed walkthrough . Griffon , a ghoul outside of Underworld , is selling Aqua Cura , a tonic that he claims will cure the ghoul condition ; however , you learn the truth behind the re - branding soon enough . There are four ways to begin this quest . The first option is to talk to Griffon in the Museum of History and ask for a bottle of Aqua Cura . According to your Pip - Boy , though , the water is irradiated . If you bring this fact up to Griffon , he will deny this by claiming " your Pipsqueak 2000 or whatever it ' s called is broken " and the quest will be added . It can also be added by either passing a speech check with Scribe Bigsley or by hacking his terminal . ( A fourth option is to stumble upon the operation itself , where you ' ll find a holotape that adds the quest - see below for location . ) Find Griffon ' s bottling operation . To find proof , you need to find Griffon ' s bottling operation . Naturally , the ghoul salesman himself does not want to tell you where it is . However , as he mentioned that Scribe Bigsley ' s men deliver the Aqua Pura to him , Bigsley likely knows where it is . When asked , the scribe will freely tell you that Griffon ' s operation is in the Museum Authority Building . When you first enter the building , there is a bathroom on the right . There is a bottle of Nuka - Cola Quantum in the tank of the toilet in the closed stall . Follow the hallway on the left of where you entered the building , heading to the northwest corner of the ground floor and go down the stairs . When you go downstairs take a right into a big room with barrels and tubs . In between 2 tubs on a coffee table are 2 dirty water , a Nuka - Cola , a clipboard , a cabinet full of wig s and a holotape . An identical holotape of Griffon ' s bottling instructions can also be found on one of the ghoul guards in the basement . In the same room , you can find 4 crates of Aqua Pura , just to the left of where you found the holotape . The holotape tells you that Griffon ' s ghoul guard s dump the Aqua Pura into the tubs and sinks , selling that to raiders and slavers while he sells dirty water in Aqua Cura bottles to ghouls . Dealing with Griffon . When you go confront Griffon you have three options : blackmail him , force him to tell the truth or force him to sell real Aqua Pura from that point on . None of the choices affect your Karma . Blackmailing Griffon . You can blackmail him for 300 caps single payment or 40 caps every ( in game ) week . Alternatively you can pass the first speech check for 100 caps every week , the second speech check for 80 or the third for 60 . It is not needed to visit Griffon every week to receive payment , as he will still pay for missed weeks ( e . g . if waiting for one in - game month , Griffon will pay 4x the one - week payment ) , but no more than four weekly payments . Forcing Griffon to confess . If you force Griffon to confess about the true nature of Aqua Cura , the crowd will turn hostile against him and draw weapons . Griffon will attempt to defend himself , but is no match for his four angry customers , after which you can loot anywhere from 400 - 600 caps off him . Selling the real Aqua Pura . Although Griffon will tell you to come back in a few days , his dialogue will remain the same , simply informing you his business with you is concluded , then try to pass you off as a happy customer to the crowd . If you had added the Modified FEV to Project Purity , then the Chop Shop will be full of ghouls suffering from its effects . This solution results in negative Karma .