It will take around 2 hours, or until the tails are almost falling apart.
Usually pigtails are cured in a highly salted brine, so it's very important that you remove some of that salt or you'll end up with a very salt dish once you use it in cooking. The usual process is to boil and change the water 2 or 3 times to get the salt out, then you can now use it however you want.
Cooked pig tails add flavor to side dishes, such as peas and turnip greens. The rendered fat gives recipes a distinct flavor that might otherwise be lost using other parts of the pig.
Barbecued pig tails grilled to a crisp are often eaten as an appetizer before the main dish.
Here's how to cook pig tails shared by Livestrong.com.