1 mm of limescale = +18% energy. No Calc L removes it
Periodic dishwasher descaling: restores operating temperatures and pressure and extends machine life.
available sizes
contact time
The problem
What happens every day without the right product
Limescale everywhere
Taps, showers and tiles get coated in white deposits that kill shine and hygiene.
Long, tiring cleaning
Without an effective descaler you scrub for ages with poor results and damaged surfaces.
Less efficient systems
Scaled boilers and nozzles consume more energy and fail earlier.
The solution
Targeted acid action: dissolves scale, respects surfaces
The professional acid formula attacks limescale deposits and dissolves them chemically: apply, rinse, and the surface is like new — no abrasion.
- 1 mm of limescale = +18% energy: No Calc L removes it
- Restores operating temperatures and pressures
- Extends machine lifespan
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Instructions
How to use it, in 3 moves
- 1
Check the dosing unit and set the concentration according to water hardness.
- 2
Run the full wash cycle.
- 3
Check the product level and nozzle cleanliness weekly.
Dwell / contact time
10–20 min + empty cycle
Frequency of use
Monthly / depending on soil
Dilution table
| Use | Dilution | Practical dose | Yield per 1 L/kg |
|---|---|---|---|
| monthly | 1:10 | 100 ml / 1 L | 10 L |
| Heavy soil | 1:5 | 200 ml / 1 L | 5 L |
Purchase
Choose the size and order
Prices incl. VAT. Free shipping above the threshold shown at checkout.
CHF 67.50
CHF 67.50 / 5 kg · VAT included
(CHF 13.50 / kg)
Secure payment: Card · TWINT · Apple Pay · Google Pay
Available sizes
Official 4F Services data sheets in Italian where available; other documents are generated from the catalogue pending the official versions.
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Delivery across Switzerland · Secure payment · Technical and safety data sheets included
Magazine
Why it matters
What is behind this product — from the magazine 'Safety you can't see'.
Streaks on dishes from the dishwasher: the 4 causes and the definitive fix
Dull glasses, drops on cutlery, rough plates: in a professional dishwasher, streaks almost always come from one of these 4 causes. How to spot them in two minutes and fix them for good.
Read the articleLimescale in the dishwasher: the maintenance that extends the machine's life
You do not see limescale until it does damage: scaled heating elements, rising consumption, weak washing. The right periodic maintenance — what to do, how often, at which doses.
Read the articleHard water in Switzerland: what changes when you wash
In much of Switzerland the water is rich in limescale. Here is what happens inside the dishwasher and on surfaces, how to recognise the signs and why the right dosage depends on your water hardness.
Read the article