I just bought a 2012 cyclone 3612 toy hauler and I want to add a sprayer for the toilet. A parts guy where I bought it from told me I could cut the nub on the toilet valve and add a sprayer to that, is he right ? If not how do I go about accomplishing this and what parts do I need to buy ? I havent picked it up yet so I'm not sure what brand toilet is in it. Thank You Frank