I gotta point out a deep misunderstanding here about our kidneys.
It is the liver's job to filter toxins and dump them into the intestines.
The kidneys job is to ulta-filter and balance the blood.
If many toxins are showing up in blood it means the liver is malfunctioning and/or your diet is toxic.
Urine is technically called; plasma ultra filtrate. It is an image of your blood.
If your urine is nasty and unpleasant there is something going wrong inside you and with what you are putting inside yourself.
Urine BTW is a very powerful healer. Our bodies are perfectly evolved to heal themselves if permitted to.
Be like a liver too then!