The correct dosing can work wonders for your wash. But remember that water hardness - and how dirty your washing is - can make a difference to the amount of detergent you need to use.
PREWASH - Add an extra 100ml.
HANDWASH - 100ml per 10 litres (1 bowlful) of water
If you wish, you can use more for extremely heavy soil, up to a maximum of 400ml.
For best results use 1 cap (35ml) in your washing machine drawer.