The scouring cream (type CIF cream) is rather thick, not easy to rinse, not always effective.
It's not always a given, either.
The ideal would be to have a trick to replace the scouring cream.
If I tell you that, it's because of course I have one! Quickly grab your white vinegar and baking soda:
1. Mix 2 tbsp of white vinegar and 2 tbsp of baking soda.
2. Be careful, it foams a little for a few seconds.
3. Scrub your sinks or washbasins with this mixture.
4. Rinse well.
And there you have it, an effective and inexpensive scouring cream :-).
A word of advice, wear gloves because this mixture can be abrasive on the hands.