In hotels, restaurants, schools or office buildings, washrooms are where customers and employees judge the hygiene of the whole building. Limescale, water stains and soap residue are the most common problems. They are solved with products suited to each surface and a consistent work sequence.
In short
- Limescale forms from hard water; it is removed with an acidic detergent and prevented by drying surfaces.
- Work from top to bottom and from clean areas towards the toilet bowl, with different cloths for each area.
- Detergents clean; where the procedure requires disinfection, apply an authorised disinfectant after cleaning.
Why limescale forms
Hard water contains calcium and magnesium salts. When the water evaporates, they deposit as a hard white layer on taps, tiles, shower cubicles and toilet bowls. Limescale traps soil, encourages microorganisms to adhere and shortens the service life of fittings. Drying surfaces after use and regular cleaning reduce deposits.
Recommended work sequence
- Ventilate and put on protective equipment (gloves).
- Apply the toilet cleaner under the inner rim and leave it to act.
- Clean mirrors, taps and washbasins, then the tiles, from top to bottom.
- Treat limescale deposits with a descaling detergent, leave for a few minutes, then rinse.
- Clean and rinse the toilet bowl last, with a dedicated cloth.
- Wash the floor, from the back of the room towards the door.
- Dry shiny surfaces to prevent stains and new deposits.
The right product for each surface
| Surface | Problem | Product | How to use |
|---|---|---|---|
| Tiles, washbasins, shower cubicles | Limescale, soap residue | Antitart or Antitart Spray | Apply to the surface, leave for a few minutes, then rinse |
| Toilet bowl | Limescale, rust, water stains | Perfodez WC | Apply under the inner rim, leave for a few minutes, then rinse |
| Stainless steel and chrome | Water marks, grease, limescale | Inoxnet | Spray, rinse and wipe with a soft cloth |
| Floors, multiple surfaces | Everyday soil | Performant | 40 mL in 5 L of water |
Cleaning and disinfection: when both are needed
The detergents above clean and remove deposits; they are not disinfectants. In healthcare facilities, in spaces with epidemiological risk or wherever the internal procedure requires it, apply an authorised disinfectant (PT2) after cleaning, observing the concentration and contact time. Details in the article Cleaning, disinfection, sterilisation.
Common mistakes
- Mixing an acidic detergent with a chlorine-based product: toxic gases may be released.
- Using an acidic product on marble or natural stone, which are sensitive to acids.
- The same cloth for the toilet bowl and the washbasin.
- Product left to dry on the surface instead of being rinsed.
Frequently asked questions
How often should limescale be treated?
It depends on water hardness and frequency of use; in high-traffic spaces, a weekly descaling treatment, combined with daily cleaning, prevents thick deposits.
Can I use Antitart on stainless steel?
The product sheet also mentions stainless steel surfaces; for maintaining and shining stainless steel, Inoxnet is the dedicated product.
Does the toilet cleaner disinfect?
A detergent cleans and sanitises; disinfection requires an authorised biocidal product, used according to its authorisation.
GM 2000 products for this application
References
- Technical data sheets of the products cited.
- Romanian Ministry of Health Order no. 1761/2021 approving the Technical Rules on cleaning, disinfection and sterilisation in public and private healthcare facilities, for healthcare facilities.
Article reviewed by the GM 2000 technical team. Last updated: 22.10.2026. Product information is taken from the authorisations issued by the Romanian Ministry of Health; for other applications, refer to the label and the technical data sheet.
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