Under sink RO water filter system for rented apartment
I live in a rented apartment in an area with hard water and want to use a RO water filtration system for drinking water. I looked at a couple of options for OTC and under sink. Based on the features i would like to have an undersink system that doesnt require manual refill and emptying and also saves the kitchen counter space. However since i live in a rented apartment, i am not sure if i will be allowed to make changes to existing plumbing to install the under sink system. I do have a workaround to replace the existing faucet with a new 3 way faucet that will include an outlet for filtered water and will not require any drilling. Has anybody done this in their apartments ?