Super Professional W9 Heavy Duty Toilet Descaler
Super Professional W9 is a 750ml toilet descaler for removing grime and limescale from suitable washroom fixtures. Manufactured by Mirius, it gives professional cleaning teams a dedicated product for mineral deposits that need attention during a planned toilet-cleaning routine, particularly in premises affected by hard water.
The formulation contains citric acid and is intended for compatible stainless steel, porcelain and chrome-plated surfaces. Check the fixture material and its care instructions before application, including any restrictions affecting coatings or decorative finishes. Using the right descaler helps keep the cleaning method appropriate to the surface being maintained.
W9 is applied around the toilet bowl and beneath the rim after loose deposits have been brushed away and flushed. The manufacturer specifies a minimum treatment period of 30 minutes, ideally overnight, before flushing. This makes it useful for scheduled descaling when the toilet can remain out of use for the required time.
The individual bottle fits into an organised washroom cleaning kit alongside dedicated toilet brushes. Explore the wider washroom cleaning range for other maintenance tasks, selecting each product for its own purpose. Keep chemicals separate, follow the bottle label and ensure the cleaning team has access to the safety data sheet.
Key Features & Benefits
- Heavy-duty descaler for grime and mineral deposits in compatible toilets.
- 750ml bottle for professional washroom cleaning routines.
- Suitable materials include stainless steel, porcelain and chrome plate.
- Citric-acid formulation with a green, odourless liquid appearance.
- Manufacturer's application method covers the bowl and beneath the rim.
- Minimum 30-minute treatment period; overnight treatment is recommended where practical.
Directions for Use
Prepare the washroom and protect the operator
Read the label and safety data sheet, confirm surface compatibility and put appropriate cleaning signs in place. Provide ventilation and wear the protective gloves, clothing and eye or face protection specified for the task. Keep other cleaning chemicals away from the treatment area.
Brush away loose deposits and apply
Brush the toilet bowl to remove loose deposits, then flush. Apply W9 around the inside of the toilet bowl and beneath the rim as directed on the bottle. Use controlled movements to avoid splashing and prevent contact with skin or eyes.
Allow the required treatment time
Leave the product for at least 30 minutes before flushing; Mirius recommends overnight treatment where possible. Manage access to the toilet while the product is working. Do not add bleach or another cleaner during the treatment.
Flush and store securely
Flush after the required treatment period and leave the fixture ready for use. Close the bottle securely and store it upright in its original container in a cool, dry, ventilated place, away from incompatible chemicals and children. Follow the label and site procedures for empty-container disposal.
Product Specifications
| Specification |
Details |
| Brand |
Super Professional |
| Manufacturer |
Mirius |
| Product |
W9 Heavy Duty Toilet Descaler |
| Product code |
800-117-0013 |
| Bottle volume |
750ml |
| Primary purpose |
Removal of grime and limescale |
| Listed compatible materials |
Stainless steel, porcelain and chrome plate |
| Appearance and odour |
Green liquid; odourless |
| pH, concentrated solution |
1.5–3.0 |
| Treatment time before flushing |
At least 30 minutes; ideally overnight |
FAQs
What does W9 remove?
W9 is intended to remove grime and limescale from suitable toilet surfaces. Use it for mineral build-up as part of a planned washroom maintenance routine, following the stated application and treatment time.
Which surfaces are suitable?
Mirius lists stainless steel, porcelain and chrome plate. Check the fixture manufacturer's care guidance and the condition of its finish before use. Do not assume that unlisted or acid-sensitive materials are compatible.
How long should it remain in the toilet?
Allow at least 30 minutes before flushing. The manufacturer recommends leaving it overnight where practical, so schedule treatment when the toilet can be kept out of service for the required period.
Can W9 be mixed with bleach?
No. Do not mix W9 with bleach or other cleaning products. Its safety data sheet warns that mixing with hypochlorite bleach can release toxic chlorine gas; keep products separate during use and storage.
Does the product need protective equipment?
Yes. W9 can cause severe skin burns and eye damage. Follow the label, safety data sheet and workplace assessment for protective gloves, clothing and eye or face protection, and avoid splashing during application.
What size is supplied?
This listing is for a 750ml bottle of Super Professional W9, product code 800-117-0013. Keep the original label on the container so the product identity, directions and safety information remain available to users.
