lipasanF® has been in use for years in German sewage treatment plants, large-scale operations, and municipal facilities – at Fraport, Messe Frankfurt, IKEA, and various treatment plants such as Amperverband or LINEG. These users typically have their own plant technicians and dosing specialists. For private customers, small restaurateurs, and property management companies, the dosage is less obvious.
This guide provides specific dosage information for the most common use cases. It does not replace the label on the bottle – but it serves as a quick reference.
General rules (for all applications)
- Observe contact time. lipasanF® requires 6 to 12 hours of contact time with grease to be effective. During the day, the agent is often washed away by water before the lipase microorganisms can work. Best time: In the evening after the last rinse.
- Do not combine with chemicals. Chemical cleaners (Drano, Rohrfrei, chlorine) kill the microorganisms immediately. After using such agents, wait at least 48 hours.
- Be patient with old buildup. The first effects are visible after 1 to 2 weeks. Complete cleaning of old deposits takes 4 to 12 weeks, depending on the thickness of the buildup.
- Use warm water before first use. Flush 1 liter of warm (not boiling) water through the pipe, then add lipasanF®. This distributes the agent more effectively.
Household
Routine use
50 ml once weekly into the kitchen drain, in the evening. Leave to work overnight, rinse with warm water in the morning.
For two kitchen drains (e.g., sink and dishwasher connected separately): 25 ml each.
Acute problems (odor, slow-draining water)
100 ml once daily for 7 days, then return to routine weekly use. For very old deposits, the intensive period can be extended to 14 days.
Bathroom and WC
In the bathroom, usually sufficient 20 ml once monthly into the shower drain and into the washbasin. The WC itself generally does not require treatment – problems in the WC are rarely caused by grease.
Restaurant / Gastronomy
Routine
For a typical restaurant kitchen with approx. 50 seats: 500 ml to 1 liter per week directly into the inlet of the grease trap – not into the trap itself (see DWA guidelines).
For businesses with very high fat content (French fryers, burgers, Asian kitchens)
1 to 2 liters per week, distributed evenly over several days. Optimal: 200 ml every evening after closing time in the main kitchen drain.
When you can expect a reduction in mandatory cleaning
After 3 to 6 months of continuous use, you should have measurably less fat mass in the grease trap – document this using your waste disposal company's inspection reports. This can be used to justify the reduction of intermediate cleanings to the legal minimum (1× annually) to the authorities.
Property management / multi-family residential buildings
Standard dosage
1 to 2 liters per 6 residential units per month into the grease trap or the uppermost connection point of the vertical pipe. Apply in the evening so it can work overnight.
Examples:
• 6-family house: 1 L per month
• 12-family house: 2 L per month
• 24-family house: 4 L per month (or 2 L every 2 weeks)
Initial treatment (if problems already exist)
Double dose for the first 8 weeks, then reduction to the standard dose. Inform tenants via notice so that no chemical cleaners are used in parallel.
Hotel
Hotels have several relevant drains: kitchen, bar, spa, laundry. For each area:
- Kitchen / Bar: as in gastronomy – 500 ml to 1 L per week per area
- Spa area: 200 ml weekly into the main drain line
- Laundry: 500 ml weekly – laundry cleaning generates significant fat loads from skin residues
Camping / Motorhome (Greywater tank)
After each tank emptying 50 ml into the freshly emptied greywater tank add, then refill with 1 to 2 liters of water so that the agent comes into contact with the tank walls.
During longer periods of inactivity (over 3 days) additionally 100 ml directly into the kitchen drain as interim care.
Common mistakes
- Water temperature too high. Lipase microorganisms are stressed above 50 °C and die above 60 °C. Do not use the application basin immediately after a hot water rinse.
- Contact time too short. If the agent is rinsed away within 1 hour, there is hardly any effect. Leave for at least overnight.
- Too sparing. For those who pour 10 ml into a clogged drain and wonder why nothing happens: in cases of acute problems, significantly more must be used in the short term.