Boil 12 cups of water in a large pot.
Slice the pork and place it in hot water; stir and leave for 1 minute, drain and rinse in cold water.
Peel and core the chayote and cut it into large chunks.
Peel and cut carrots into medium chunks.
Heat oil in the pan to medium and add ginger till fragrant.
Add the chayote chunks and stir fry for 1 minute until fragrant.
Add the carrots and stir fry for 1 minute.
Add all the ingredients into the boiling water.
Boil on high heat for 10 minutes, then reduce to medium-high for 10 minutes, and finally to medium heat for 20 minutes.
Add salt to taste and serve.