Test result preview
With its drain cleaner, the manufacturer Klarberg offers a powerful and solid product. In our test, we were particularly impressed by the functionality of the cleaner. In addition, thanks to its composition, the cleaner can be used for all pipe materials and drains and therefore offers the maximum flexibility you could wish for from such a product. The safety cap used offers additional safety against leaks or in relation to small children.
The product is only criticised in terms of dosage, as the advertised “up to 15 applications per bottle” with a total volume of one litre and the recommended “100 ml for light blockages” cannot be achieved in purely mathematical terms.
Overall, however, we are impressed by the handling and effectiveness of the product, which is the reason for our very good rating.
Advantages
- Flexible for all pipework
- Odourless
- Pollutant-free
- strong effect
Disadvantages
- Dosage contradictory, no unit of measurement attached
The test
General information
We took a close look at and tested the product in a practical test. In the following, we take a closer look at the features and impressions. From the packaging, materials and quality to the range of functions and handling, the product is subjected to our test procedure.
To give you a quick overview, we work with a points system. The maximum achievable score per area is 100 points. The final overall score is calculated from the average of all tested features, taking into account the respective weighting. For a detailed insight into our comprehensive evaluation process, which forms the basis of all our product ratings, please click here.
The first impression
Packaging and contents
Here we take a closer look at packaging. Sustainability is becoming an increasingly important factor. In addition, adequate protection of the product must of course also be guaranteed. Are the contents of the packaging complete and does the manufacturer make it as easy as possible for me to use the product straight away?
Here we take a closer look at packaging. Sustainability is becoming an increasingly important factor. In addition, adequate protection of the product must of course also be guaranteed. Are the contents of the packaging complete and does the manufacturer make it as easy as possible for me to use the product straight away?
show more +Criterion
Remark
Points achieved*
Product protection
Bottle is stable, product sufficiently protected
Points
Sustainability Packaging
Unnecessary packaging waste has been avoided, the plastic bottle is necessary
Points
Package contents & scope
Completely available
Points
Instructions for use
Printed on the bottle to conserve resources
Points
TOTAL
100
Points
Weighting: 20%
*Themaximum score is 100 points
At first glance, the Klarberg brand drain cleaner cuts a fine figure. An attractive and simple bottle in a greenish design makes a good visual impression thanks to the high-quality labelling. The packaging also looks solid and robust to the touch, so that leakage can be ruled out when used properly. The use of a plastic bottle is essential due to the liquid inside and is required for safe transport. Therefore, the use of plastic is not taken into account in terms of sustainability. Additional packaging such as a cardboard box or similar is not used, which we consider to be sensible and resource-saving. Nevertheless, product protection is fully guaranteed.
Comprehensive instructions for use and warnings in five different languages can also be found on the bottle label, so that no further resources are wasted here either.
![](https://pruefengel.de/wp-content/uploads/2024/05/IMG_4139-1000x1024.jpeg)
The first time in your hand
Product processing and appearance
Before we start the practical test, we take a close look at the workmanship of the products. How high quality are the materials used? Are the look and feel satisfactory?
Before we start the practical test, we take a close look at the workmanship of the products. How high quality are the materials used? Are the look and feel satisfactory?
show more +Criterion
Remark
Points achieved*
Visual appearance
Simple and functional design
Points
Processing
Good material quality
Points
Stability
Very stable
Points
Sustainability of the product
No details, but use of high-quality materials
Points
TOTAL
93
Points
Weighting: 20%
*Themaximum score is 100 points
![](https://pruefengel.de/wp-content/uploads/2024/05/IMG_4138-1024x1007.jpeg)
The product is also impressive on closer inspection.
The first thing you notice when opening the bottle is the safety cap. This not only prevents the bottle from leaking but also offers additional protection for households with small children. However, as with other closures of this type, the bottle can be opened with a combination of pressing and twisting at the same time.
As advertised by the manufacturer, the product itself proves to be surprisingly odourless. Although not completely “odourless”, no pungent, chemical smell can be detected, unlike competing products.
Unfortunately, the manufacturer does not provide any information regarding the sustainability of the product. Details on the production of the product, information on CO2 compensation measures or other certifications would be desirable.
This is what our practical test showed
Does the manufacturer keep its advertising promises?
Our practical test has the highest relevance and therefore weighting. Here, the product has to undergo a wide range of criteria and tests. We check the functions and product promises of the test article.
Our practical test has the highest relevance and therefore weighting. Here, the product has to undergo a wide range of criteria and tests. We check the functions and product promises of the test article.
show more +Criterion
Remark
Score achieved*
Utilisation
Simple and self-explanatory use
Points
Functionality
Powerful, highly alkaline cleaner
Points
Flexibility
Can be used for all pipe systems and materials
Points
Dosage
Recommendation contradicts advertising claims, unit of measurement or dosage measure on the bottle desirable
Points
Security
Safety closure against leakage, protects small children
Points
TOTAL
95
Points
Weighting: 45%
*Themaximum score is 100 points
The practical test of the Klarberg drain cleaner can be summarised as successful and very simple.
For our test, we treated a shower drain and a sink drain according to the instructions for use. This first involves a brief pre-rinse with hot water. The desired amount of cleaner is then poured into the drain, depending on the degree of blockage. After a certain time, the drain can then be rinsed or reused. For light blockages, 20-60 minutes exposure time and 100ml of cleaner are sufficient; for heavy blockages, the manufacturer recommends 200ml and overnight exposure. We have tried both on the objects mentioned above. The results are impressive. On the one hand, there was a noticeable improvement in water drainage . On the other hand, there were no more bad odours from the drain. As the manufacturer claims that the cleaner is suitable for all pipe materials, the product offers not only excellent performance but also maximum flexibility in use.
The only thing we are not completely convinced of in our test is the dosage . The small size of the bottle head allows for relatively precise pouring. For even easier use, an enclosed measuring unit or a transparent marker along the bottle would be desirable so that the fill level could be seen and measured. We used our own unit of measurement for our test.
The manufacturer also advertises “up to 15 applications” on the label. Even with the lowest recommended dosage of 100ml for light blockages, only 10 applications are possible with 1000ml of cleaner, which we consider to be rather misleading.
On a positive note, however, the cap remains stable even after repeated opening and closing. With regard to the safety of the product and in general, we can therefore speak of a successful and functional product.
![](https://pruefengel.de/wp-content/uploads/2024/05/IMG_4136-1-825x1024.jpeg)
Price/performance ratio
and ratings from consumers
Finally, we analyse how the product compares to the competition. Can it keep up with the competition in terms of price and quality? Would we generally recommend buying it? We also look at the consumer reviews and check whether the critical and positive reviews are actually justified.
Finally, we analyse how the product compares to the competition. Can it keep up with the competition in terms of price and quality? Would we generally recommend buying it? We also look at the consumer reviews and check whether the critical and positive reviews are actually justified.
show more +Criterion
Remark
Score achieved*
Price / performance ratio
Very good performance in the lower price segment
Points
Rating cut
without rating
–
TOTAL
90
Points
Weighting: 15%
*Themaximum score is 100 points
This product does not yet have a sufficient number of ratings and reviews on other platforms. This part of the rating is therefore omitted.
Prices of up to €19.99 are charged on the Internet for equivalent products. Very cheap products are available from as little as €3.75 . The Klarberg drain cleaner is therefore currently in the lower price segment with a price of €9.95. For the quality and performance received, the price-performance ratio is very good.
Overall result
Weighting
Points achieved*
1. packaging & contents
20%
Points
2. product processing & appearance
20%
Points
3. in the practical test
45%
Points
4. price/performance & consumer reviews
15%
Points
TOTAL
Points
*Themaximum score is 100 points