If you can prove that the kitchen sink spray nozzle was not hooked up properly by some third person (presumably employed or retained by your landlord) and the kitchen sprayer due to its improper installation damaged the rental that you are in, then the responsible party for any damages is not you.Rather it would be the former "super" and the landlord himself/herself. You should not be held responsible for any damages nor should any part of your security deposit be held for any such damages from what you have written.