How long should you boil salted cod?

The main thing about cooking saltfish is de-salting it. There are a variety of ways to do this and each cook has his or her own method. My sister, Pat, usually boils the salt fish with cut limes. Many people boil it without limes, more than once, draining the water each time and adding fresh water to boil again, they repeat this process 2 to 3 times. Each time, the salt fish is boiled anywhere from 5 to 7 to 10 to 15 minutes. The length of time to boil depends on the thickness of the fish and the size of the piece of saltfish being boiled. What I do is soak the saltfish overnight in boiling water, drain it the next morning and shred it to bits or loosen it to make whatever dish I am preparing. Now if the piece of saltfish I am using is thick, then after draining it from the overnight soak, I will boil it once for about 10 - 15 minutes and then prepare it.