How do I remove limescale from my granite washbasin

http://www.countertopspecialty.com/cleaning-hard-water-stains-on-marble-and-granite.html

comet foam spray cleaner i love this stuff

Use CLR thats the name of it it will clean it not sure if it will damage it but it will take it off Spray it on let it soak for a little while and wipe all cleaner off .CLR is all natural so it says on the bottle and I use it in my bath room and kitchen .We have hard water and as long as you let it soak for a bit it comes off.

Have you tried Cream cleaner or Bar keeper friend. Then WD-40

Do not use Comet, CLR, or Bar Keepers Friend on granite. It will further the damage you have. The vinegar more likely etched the granite and it may not be brought back.

Marble, granite, and stone do NOT like having acidic (ie: citrus-based) cleaners used on them. Citrus or vinegar will actually cause “etching” on granite countertops. Not a good thing. Granite countertops also don’t like it when you use something like Windex on them because it strips the “seal” off of the stone.

If you are trying to remove an old stain, create a dense paste of more baking soda and less water. Then place the paste over the stain, allowing it to function for a few minutes. After that wipe off the baking soda paste. If it is needed you can repeat the procedure until the stain vanishes.

Apparently there are some very nice countertop/granite cleaners out there that do a great job…but $7.00 for a 12-ounce bottle? YOU can do better than that! :-)

After researching several homemade options out there…I discovered they all had the same basic ingredients…just in varying amounts. Some had a LOT of alcohol in them…some very little. I think the following “recipe” has a good balance of the ingredients, based on the information I read.

Homemade Granite Cleaner, 1/4 cup of rubbing alcohol (or cheap vodka), 3 drops of Dawn or other dish soap (Castile soap would also be a good alternative if you prefer), Water, 5-10 drops essential oil (optional – to help mask the alcohol smell).

Put the rubbing alcohol or vodka into a 16 oz spray bottle. Add the dish soap, essential oil and fill up the rest of the bottle with water.

Now give it a few shakes….THEN give it a try! It should give your countertops a nice, clean shine. Works on appliances too! All at a FRACTION of the price of the store-bought stuff.