Limescale is a hard, chalky deposit, that can be found around the home in bathrooms and kitchens around taps, toilet bowls, baths, pipes and any water area you come into contact with on a daily basis.
It can be tough to remove and also can cause some serious damage to your pipes.
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Thankfully, a common household product sitting in your kitchen cupboard can remove limescale in just "five minutes".
Cleaning fans shared their top tips on how to get rid of the stains on Reddit, but one, in particular, stood out.
One user said the secret to ridding the stubborn grime from your bathroom is to clean it with something acidic.
They said: "Start with white vinegar, though brown works just as well.
"Put some in a spray bottle, spray it on, wait five mins then give it a scrub. Do this a few times."
As limescale is made of calcium carbonate, an alkaline, the high percentage of acetic acid it contains works to break through the hard deposits.
The Reddit user continued: "If vinegar does no good, you can try other acids.
"The strongest one is 'Spirit of Salts'.
"Use with great caution, follow the instructions on the bottle, ventilate the area thoroughly and wear protective gear as it will advise.
"I applied a dilute solution with a brush and it worked a treat for me."
You can pick up white vinegar in most supermarkets for as cheap as 20p.
