About Us

Prüfengel offers authentic consumer tests in which real users share their experiences with products. Our tests are based on practical applications in everyday life and reflect the opinions of consumers. As we focus on consumer tests, we do not carry out any material, long-term or laboratory tests. The tests are carried out by 1-2 independent consumers over a period of 7-14 days. The exact test conditions can be viewed in the test plan of the respective test report – click here to go directly to the test plan.

Manufacturers provide the tested products free of charge. We charge a one-off test fee for carrying out the tests. In addition, manufacturers pay an annual licence fee for the use of the Prüfengel seal. We also receive a commission for linking to manufacturers’ websites. These remunerations have no influence on our test results or ratings.

We guarantee transparency and a fair evaluation. For a detailed insight into our comprehensive evaluation process, please click here.

Wasserheld
Mulm vacuum cleaner

The mulm vacuum cleaner from WASSERHELD meets all the criteria for successfully removing mulm. The mulm vacuum cleaner has three attachments, which can be exchanged as required depending on the situation. To use the device, the suction hose is inserted into the aquarium and the other end is secured in a bucket with the hose clamp to collect the water. Make sure that the hose valve is open. Cleaning is child’s play with the mulm vacuum cleaner from WASSERHELD . One point of criticism is the unecological and unnecessary packaging.

Advantages

Effective
✅ Light and handy
✅ With three attachments
✅ Good fit of the connecting pieces

Disadvantages

❌ None

The first impression

Packaging and contents

ℹ️ 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?

CriterionRemarkScore achieved*
Product protectionCarton is sturdy, product sufficiently protected100 points
Sustainability PackagingNo unnecessary packaging waste, but use of plastic80 points
Package contents & scopeComplete100 points
Instructions for useWritten in German, easy to understand100 points
Total95 points
Weighting: 20%
*The maximum score is 100 points

The mulm vacuum cleaner from WASSERHELD is carefully packaged. The sturdy cardboard box offers sufficient protection during transportation. Although unnecessary packaging waste has been avoided, the use of plastic film could possibly be a point of criticism for some consumers. The product packaging contains the mulm vacuum cleaner with plenty of accessories. An instruction manual in the form of a book is enclosed, which is very detailed and easy to understand.

The first time in your hand

Product processing and appearance

ℹ️ 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?

CriterionRemarkScore achieved*
Visual appearanceVery good visual appearance, high-quality materials.100 points
ProcessingHigh-quality workmanship, no visible material defects.100 points
StabilityStable and robust100 points
Sustainability of the productNo information on sustainability available. The product is made of high-quality material and is therefore durable.100 points
Total100 points
Weighting: 20%
*The maximum score is 100 points
The mulm vacuum cleaner is ready for the practical test.

The mulm vacuum cleaner from WASSERHELD impresses with a very good visual appearance and high-quality materials. The workmanship is also very well thought out. The materials are highly stable . Unfortunately, the Prüfengel Institute has no information on the sustainability of the product. Nevertheless, it can be stated that the set is made of high-quality material and therefore has a long service life .

This is what our practical test showed

Does the manufacturer keep its advertising promises?

ℹ️ 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.

CriterionRemarkScore achieved*
User friendlinessSimple, light, handy100 points
FunctionalityRemoves impurities from the aquarium very well.100 points
Stability and fasteningGood stability and fastening option with the hose clamps100 points
Working hoursVery fast due to its simplicity100 points
AssemblyQuick and easy installation, even without instructions for use100 points
Total100 points
Weighting: 45%
*The maximum score is 100 points

For the practical test of the mulm vacuum cleaner from WASSERHELD , we examined various criteria in order to assess its functionality and quality. The aquarium cleaner not only makes it easy to change the water, but is also ideal for cleaning the substrate. You simply press the hand pump a few times and the water starts to flow. In addition, aquarium cleaning is particularly safe for small fish and invertebrates thanks to the grid attachment . The 3 meter long aquarium hose makes changing the water particularly easy. The mulm vacuum cleaner also impresses in terms of stability and attachment. It is attached using the hose clamps supplied. Thanks to the hose valve and return valve, cleaning the aquarium is child’s play. Installing the mulm vacuum cleaner was extremely quick and easy .

Price/performance ratio

and ratings from consumers

ℹ️ Finally, we examine 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?

CriterionRemarkScore achieved*
Price / performance ratioVery good performance in the lower price segment90 points
Rating cutNot rated, as there are still too few customer reviews.
Total90 points
Weighting: 15%
*The maximum score is 100 points

Prices of up to €44 are charged on the Internet for equivalent products. Very inexpensive products are available from as little as € 16 . The mulm vacuum cleaner from WASSERHELD is therefore currently in the lower price segment with a price of € 17.99. For the quality and performance received, the price-performance ratio isvery good.

Overall result

WeightingScore achieved*
1. packaging & contents20%95 points
2. product processing & appearance20%100 points
3. in the practical test45%100 points
4. price/performance & consumer ratings15%90 points
Total98 points
*The maximum score is 100 points
Mulm vacuum cleaner
 of the brand 
Wasserheld
achieved
98
Points in our test and therefore passed. The test was carried out in the test period
12/23
and is stored in our database under the licence number
231106008
. Further information on our test procedure can be found at www.pruefengel.de/testverfahren.

The practical tests are based on careful observations and do not include long-term or laboratory tests. The test judgements reflect the personal impressions and opinions of the testers who try out the products in everyday use. We would like to emphasise that these evaluations do not claim to be exhaustive and may reflect both subjective and objective impressions. The evaluations are made to the best of our knowledge and belief, without any liability being assumed for the accuracy or completeness of the test results. It is important to note that our tests are not based on legal requirements, medical effects or specific ingredients of the products. We rely on the advertising claims and information provided by the manufacturers, but use of the information is always at your own risk. Our efforts are aimed at ensuring a serious and thorough testing procedure, which has been developed in a long and professional process in close co-operation with our testers.

The practical tests are based on careful observations and do not include long-term or laboratory tests. The test judgements reflect the personal impressions and opinions of the testers who try out the products in everyday use. We would like to emphasise that these evaluations do not claim to be exhaustive and may reflect both subjective and objective impressions. The evaluations are made to the best of our knowledge and belief, without any liability being assumed for the accuracy or completeness of the test results. It is important to note that our tests are not based on legal requirements, medical effects or specific ingredients of the products. We rely on the advertising claims and information provided by the manufacturers, but use of the information is always at your own risk. Our efforts are aimed at ensuring a serious and thorough testing procedure, which has been developed in a long and professional process in close co-operation with our testers.

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Evaluation process

You can find a detailed insight into our evaluation process, which forms the basis for our product ratings, here:

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