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Bio-enzymatic cleaner for your optimally WINTERED SEPTIC TANK 500g Mr. Bacteria No.7

A natural bacterial product for optimal preparation of your cesspool or septic tank for the low temperatures of winter.

Decomposes solid, organic waste and toilet paper.
For winter treatment of your septic tank or cesspool.
Continuously removes odours.
Decomposes all sediments and sludges.
Works even at extremely low temperatures.

Extra effective - contains 400 billion bacteria in a 0.5 kg package.

  • Promotional packages

    Promotional packages

  • Goods in stock

    Goods in stock

  • Fast delivery

    Fast delivery

  • European product

    European product

  • Verified by customers

    Verified by customers

  • Free shipment possibility

    Free shipment possibility

  • Sending the order within 24 hours.

    Sending the order within 24 hours.

  • Guarantee of original and quality

    Guarantee of original and quality

Detailed product description

A natural bacterial product for optimal preparation of your cesspool or septic tank for the low temperatures of winter.

Mr. Bacteria No. 7 is a preparation intended for the decomposition of organic impurities, sediments and sludges in cesspools and septic tanks. Due to the action of bacteria and the enzymes formed by them, solid organic waste is liquefied, which turns into an odourless liquid. The liquid can be pumped out later without any problems, there is no clogging of the sewerage system or eventually waste pipes. Regular use thus eliminates the costly emptying and cleaning of the septic tank or cesspool, as the previously formed sludge and sediments reduced the usable content of the cesspool or septic tank and therefore exports had to be much more frequent. All organic waste is mainly decomposed into water and CO2. Mr. Bacteria No. 7 is dosed once before the winter and keeps your septic tank / cesspool clean throughout the winter. The product is ideal for cottages, chalets, and places where it is not possible to treat your septic tank / cesspool with Mr. Bacteria No. 1.

Bacterial force:

We have been selling bacterial preparations for more than 15 years and we know that the bacterial strength of the preparation (i.e. the number of bacteria that the product contains) is particularly important in the production of high-quality and truly effective bacterial mixtures. The higher the content of bacteria in the product, the higher its bacterial strength. That is why we maximize the number of bacteria in each of our products, thus increasing its effectiveness! We declare that our products contain an extra number of bacteria, which help to eliminate the odour and organic waste very effectively!

Instructions for use:

Pour the required amount of product mixture into lukewarm water in the ratio of 500 g of product: 5 litres of water. Stir and allow to act for 45 minutes. Then pour the solution into the waste system via the toilet. Dose a 500 g package once for a volume of 1.5 m3 of cesspool or septic tank.

In case of seasonal use of your septic tank or cesspool, we recommend continuing in the spring using the product Mr. Bacteria No. 1 (septic tank/cesspool).

The package also includes a practical measuring cup.


Apply the product regularly, otherwise the biological cleaning process will be interrupted. When using the product, do not use aggressive disinfectant or acids and alkalis concurrently. In case of contact with skin or eyes, rinse immediately with plenty of water for 10 minutes. Store in a dry place at a temperature of 5 to 30° C in a closed container, out of reach of children. Minimum shelf life is 12 months from the opening of the product packaging, subject to storage instructions. A mixture of non-pathogenic microorganisms, bacteria, and nutrients. The product does not have the character of a dangerous preparation for human health in the sense of the criteria set by law.

Products from Mr. Bacteria offer you a complete range of products for your home and garden. Thanks to Mr. Bacteria No.5 and Mr. Bacteria No.10 you can keep your siphons and drain pipes constantly clean and passable. Thanks to the product Mr. Bacteria No.4 you get quality garden compost without chemical additives and odour. You can keep your garden pond clean and transparent also using Mr. Bacteria No.3, Mr. Bacteria No.8 or Mr. Bacteria No.9.


  • Mr. Bacteria No. 1-14 mark of quality

    On our website you can buy products of the brand Mr. Bacteria under the designation of Mr. Bacteria No. 1-14. All products from Mr. Bacteria are made of the highest quality raw materials, which ensures their quality, high bacterial strength and functionality. Mr. Bacteria are tested by thousands of satisfied customers. Also try the quality and functionality of our products. We are happy for your satisfaction with the use of our products.

    Your Mr. Bacteria e-shop team!

  • Why Mr. Bacteria products

    • Guarantee of product originality
    • Made of the highest quality raw materials
    • High bacterial concentration and efficacy
    • Free shipping on purchases over 39.90 €
    • All product range in stock
    • Shipment of the order within 24 hours
    • Thousands of happy customers
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