Guide · Product information and safe use ·
How to Use Sihirli Su
Sihirli Su, also known as Mavi Su, is a blue grout cleaner. Put on gloves and ventilate the area, apply the product to the grout lines and soiled surface as the label directs, scrub with a brush and rinse with plenty of water. This guide explains where and how to use TETİK and START Sihirli Su, what to avoid, and the pack options for businesses.
How do you use Sihirli Su? The short answer
Apply the product to the tile grout and soiled surface as directed on the pack label, scrub with a brush, then rinse with plenty of water. Wear gloves while using it, ventilate the area and do not mix it with other cleaning products.
How much product to use and how long to leave it on are stated on the label. That is why this guide gives no amounts or times; what counts is the amount and time on the label of the pack in your hand.
What is Sihirli Su?
Sihirli Su is a blue grout cleaner used for cleaning tile joints and bathroom and toilet surfaces. Since the product name also includes the words Mavi Su ("blue water"), it is known by that name too.
Our catalogue has two separate products with this name: TETİK Sihirli Su — Blue Grout Cleaner and START Sihirli Su — Blue Grout Cleaner. Whichever one you use, follow the pack label of that product.
Where is Mavi Su used?
- Tile and ceramic grout
- Bathroom and toilet floors
- Wall tiles
- Home and workplace bathrooms
- Hotels and dormitories
Where should Sihirli Su not be used?
- Surfaces not listed on the label: Use the product only in the areas stated on the label. If you are unsure about a surface, do not apply it.
- Marble, travertine and other natural stone: These stones are sensitive to cleaning products. Do not apply it unless the label clearly says so; for stone, see the guide how to clean marble.
- Enamel and chrome-plated surfaces: Unless taps, drain strainers and enamel baths are listed on the label, keep the product off them; if it splashes, wash it off at once with plenty of water.
- Wood, painted surfaces, carpets and textiles: These are not among the areas of use on the product page; do not apply it to them.
- Hardened limescale and cement residue: These are not among the areas of use either; for this residue on ceramic, see the guide how to use hydrochloric acid. Do not use hydrochloric acid to clean grout; it wears away cement-based grout.
- Cracked or crumbling grout: Cleaning will not fix it; the grout needs to be replaced.
How do you use Mavi Su? Step by step
- Read the label: Before use, read the instructions and warnings on the pack label.
- Protect yourself: Wear gloves and ventilate the area. In a small bathroom, keep the door and window open or run the extractor fan.
- Prepare the surface: Remove hair, dust and loose dirt. If you have used another product on the same surface, rinse it first with plenty of water.
- Apply: Apply the product to the grout lines and soiled surface according to the label instructions. Do not exceed the amount and time on the label.
- Scrub: Scrub with a brush. A narrow brush makes the job easier along the joints.
- Rinse: Rinse with plenty of water and leave no product or dirty water on the surface.
- Dry: Dry the surface and keep ventilating the area for a while.
- Repeat if needed: On heavily darkened grout, repeat the process from the start instead of using more product.
How do you apply it on wall tiles and bathroom floors?
- Wall tiles and their joints: Work from the top down so that running product does not reach the part you have already cleaned. Rinse in the same direction.
- Bathroom and toilet floors: Start in the corner furthest from the door and work towards it so you do not step on the wet floor. Take care not to slip until the floor is dry.
- Joints next to taps and natural stone: Next to taps, work without letting the product spread, keep the brush off them and wash off any splashes at once with water. On natural stone floors, do not apply it to the joints unless the label clearly says so, because the product will touch the stone.
- Coloured grout: Try the product in an out-of-sight corner first; if the colour changes, stop.
What are the common mistakes when using Sihirli Su?
- Trying to boost it with another product: Mixing does not make cleaning stronger, and some mixtures release dangerous gases.
- Going over the amount on the label: Too much product makes rinsing harder.
- Going over the time on the label: Do not leave the product on the surface and forget about it, or let it dry there.
- Cutting the rinse short: Product left on the surface can leave marks and make the floor slippery.
- Working without gloves in a closed room: The directions on the product page call for gloves and ventilation.
- Using a hard wire brush: It can wear away the grout; use a soft or medium brush.
What should Sihirli Su not be mixed with?
Do not mix it with any other cleaning product. That includes bleach, hydrochloric acid, limescale remover, surface cleaner and degreaser. If you use different products one after another on the same surface, rinse thoroughly with water in between. We explain which mixtures are dangerous and why in the guide can cleaning products be mixed.
If products are mixed by accident, leave the area at once and ventilate it; if symptoms appear, call a poison centre (in Turkey: UZEM, 114).
How should Sihirli Su be stored, and what if it touches your skin?
- Keep products in their original, labelled packaging; never decant them into empty drink bottles.
- Store out of the reach of children and pets, away from food.
- Close the cap tightly after each use.
- If the product gets on your skin or in your eyes, rinse at once with plenty of water and follow the warnings on the label; if it got in your eyes or symptoms persist, get medical help.
- If swallowed, do not induce vomiting; rinse the mouth with water and call a poison centre (in Turkey: UZEM, 114).
Which pack should businesses choose?
- 5 kg: START Sihirli Su, 4 units per case. Suits businesses that use it regularly.
- 30 kg: START Sihirli Su, sold singly. Suits hotels, restaurants, schools, hospitals, factories and other heavy-use sites.
- 750 ml: TETİK Sihirli Su, 12 units per case. Suits homes, offices and retail shelves.
- 1 L: TETİK Sihirli Su, 20 units per case. Suits homes, offices and retail shelves.
- Team use: If you need to decant from a large pack into a smaller container, use a clean container kept for this product only and label it with the product name and warnings. Show staff the amount and time on the label, and put a warning sign on wet floors.
- Bulk purchase: See bathroom and toilet cleaners for other products and wholesale cleaning products for prices and supply.
Related guides
- How to clean grout: why grout darkens, bathroom vs kitchen grout, grout residue.
- How to clean tiles: darkening, yellowing, limescale and grease on the tiles themselves.
- Can cleaning products be mixed: which products should not be used together, and why.
- How to use hydrochloric acid: a separate product used on hardened limescale and cement residue.
