When the kidneys begin filtering you'll begin to see:
- cloudiness of urine
- threads, strings and specks of mucus
- shaken snow-globe-like appearance
To check if you’re filtering:
Pee into a jar and let it sit for at least 4 hours allowing the sediment (if there's any) to settle at the bottom. You can leave the jar overnight in the refrigerator, but the best time to check for sediment is first thing in the morning.
For further information, please see the page on urine sediment.