Cut up the sausage. It doesn't have to be perfect.
Fill the large pot with enough water to cover all ingredients.
Put in the sausage and 1/4 cup of old bay seasoning. Bring to a boil and boil for 20 mins. Afterward taste and see if you need some more seasoning. This flavors the water for everything else.
While the sausage is boiling devein your shrimp if it isn't already. Mine was. But in order to devein take a pairing knife and slice down the back an clean out the vein so it looks like this.
Delicious flavor water
Once the sausage has boiled for 20 mins add the potatoes and boil for 15 mins.
After the 15 mins are up add the corn and boil for 10 mins more.
After the 10 mins add the shrimp and boil for about 3 to 5 mins based on the amount of shrimp.
You will be able to tell the shrimp are done when the color changes like this.
When the shrimp is done drain out the broth and you are ready to eat!