Certec Self-Dosing Drinking Water Preservative - Up to 30 L

Certec 3-in-1 – Self-dosing drinking water preservation for tanks up to 30 liters

Simply place the Certec 3-in-1 capsule from LILIE in your fresh water tank, and it will protect your drinking water for up to 12 months—no dosing, no refilling. This version is designed for fresh water tanks up to 30 liters, such as canisters, small tanks in campervans, and auxiliary tanks.

How the capsule works

The capsule contains the patented Certec ceramic, combined with the Bioelectro-DEPOT. Together, they preserve your drinking water and prevent the formation of biofilm—the streaks that would otherwise build up on the tank walls. Bacteria, germs, and viruses such as Legionella or E. coli have no chance of multiplying. The capsule automatically regulates the release of negative ions and additionally enriches the water with minerals.

Installation and Use

• Place the capsule into the water through the tank opening—it floats on the water’s surface like a buoy
• A certified nylon cord is attached to the capsule so you can fish it out of the tank at any time
• Write the installation date on the inspection label so you’ll always know when it’s time to replace it
• No dosing, no refilling, no maintenance during the service life

Always read the label and the manufacturer’s product information before use.

At a Glance

• Self-dosing drinking water preservative for containers up to 30 liters
• Active ingredient combination: patented Certec ceramic + Bioelectro-DEPOT
• Proven to prevent slime formation (biofilm) in the tank
• Self-regulates the release of negative ions
• Enriches the water with minerals
• Effective for up to 12 months
• Includes a nylon cord and a label for recording the date
• Manufacturer: LILIE GmbH & Co. KG, Besigheim (DE)
• Item number: 613000

Frequently Asked Questions

How long does a capsule last?
Up to 12 months. Write the insertion date on the control sticker so you don’t miss the replacement date.

What tank size is this model designed for?
For fresh water tanks up to 30 liters. Certec 3in1 is also available from the manufacturer for larger volumes.

Do I need to measure out a specific amount?
No. The capsule is self-dosing—just insert it and leave it in the tank.

Can I get it out of the tank again?
Yes, using the nylon cord. Leave the end of the cord accessible at the tank opening.

What should I do before using it for the first time?
Clean the tank as usual and fill it with fresh drinking water. Then insert the capsule.

Shipping costs:

Normal package: 9.
PRIO Normal package: 15.
Bulky goods package: 29.
Prio bulky goods package: 39.00
3x or more bulky goods parcels: 49.00
Prio 3x or more bulky goods parcels: 69.00
Piece goods: 99.
Collection: Free of charge

We deliver throughout Switzerland and to Liechtenstein. 

The costs are displayed in the checkout BEFORE payment. 

Bulky goods packages Parts with one side longer than 1 meter, e.g. Armaflex, solar, felt, aluminum profiles... 

General cargo: These are some batteries or large items that have to be shipped by freight forwarder. (Air conditioners...)

PRIO (selectable in the checkout at an additional cost) means that we pack these parcels first and hand over orders to the post office by 16:00 on the same day. These parcels are handed over to the post office with PRIO stickers and should arrive the next day. 

A pick-up in Winterthur can be selected at check-out. Please leave your email so that our system can let you know when it is ready for collection. (Usually happens within 24 hours)