Not necessarily, but it is very handy for plumbing.

Changing your kitchen plumbing is not a safety issue. Your pumbing should be changed only if they need it.

"Maintaining kitchen plumbing is all about making sure you have an upkeep on what needs to be serviced.

It is generally bad to have highly reactive metal in your kitchen plumbing because this may cause oxidization or degradation of the plumbing, which may lead to contaminated water and/or leaks.

You can look on Wikipedia to see if any books are available on kitchen sink plumbing You can also check the local do it yourself stores like Lowes or Home Depot for more information as they also sell books on kitchen sink plumbing as well