Drinking water everyday is very good for your kidneys and helps to flush the toxins out of your body.
You should aim to drink at least 8 glasses of water per day to keep your kidneys and the rest of your body healthy.
If you don't want to drink 8 glasses of water per day you can still keep your kidneys healthy by drinking at least 4 glasses of water per day and then drink some natural juices such as orange juice or Celery Juice or other Vegetable Juice.