I have the same problem and saw this on a different Q&A website. Am about to try it as it certainly seemed the best answer:
White vinegar is great for removing water stains from slate fireplaces, it has been tried and tested and proven to work. See the step-by-step method below...
Natural Formula to Use:
Pure white vinegar
Method to Use:
1.Fill a clean spray bottle with pure vinegar
2.Spray the vinegar freely over the fireplace and wait for a few minutes
3.If stains are stubborn spray more vinegar and wait a while longer
4.Simply wipe away with a clean cloth to reveal the shine
Sometimes stains are extra stubborn - for this make a paste of white vinegar and baking soda and scrub gently with a soft brush or sponge. Never use an abrasive cleaner like scouring pads, powders or steel wool as this will scratch the surface.
To remove salt stains from slate tiles, mix a solution of mild detergent and warm water. Use a soft brush or cloth to gently scrub the affected areas. Rinse with clean water and dry the tiles thoroughly to prevent future damage.
To remove phosphoric acid stains on black plastic, make up a paste of white vinegar and baking soda. Apply the paste to the stain and allow to sit for a few minutes, then rinse with warm water.
water
To effectively remove black stains on white clothes after washing, try soaking the stained area in a mixture of water and white vinegar, then scrubbing with a paste of baking soda and water. Rinse thoroughly and repeat if necessary before washing again.
water
Yes, WD-40 can effectively remove water stains on wood surfaces.
You can remove hard water stains from a black sink by using a mixture of equal parts water and white vinegar or lemon juice. Apply the solution to the stains, let it sit for a few minutes, then scrub gently with a non-abrasive sponge or cloth. Rinse thoroughly with water.
To effectively remove black stains from wood, you can try using a mixture of equal parts vinegar and water, or a commercial wood cleaner specifically designed for removing stains. Apply the solution to the stained area and gently scrub with a soft brush or cloth. Rinse with clean water and dry thoroughly. Repeat the process if necessary until the stain is removed.
To effectively remove black water stains from wood, you can try using a mixture of equal parts vinegar and water. Apply the solution to the stained area and let it sit for a few hours before wiping it off. You can also try using a commercial wood cleaner or a mixture of baking soda and water. Sanding the stained area lightly may also help to remove the stain.
To remove coconut water stains, first soak with cold water for a small amount of time. Then, spray the stain with a stain treatment, then wash in cold water.
For removing stains, it is best to use cold water. Hot water can set stains into fabric, making them harder to remove. Cold water is gentler on the fabric and can help prevent the stain from spreading or becoming permanent.
Vinegar.