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Rainwater filter cistern filter 3P compact filter K with stainless steel sieve for installation in the cistern, connection DN 100, height offset 0 cm. For rainwater harvesting in the house and for watering the garden
199.90 EURTo the product
| Type | Straight through filter |
|---|---|
| Installation location | cistern |
| Housing material | PE |
| Material sieve | stainless steel |
| Difference in height of inflow / outflow | 0 cm |
| connection | DN 100 |
The 3P compact filter is particularly impressive because of its flexible applicability. It is the ideal solution when there is little space and no difference in height between the inlet and outlet. The housing made of sturdy and easy-care plastic and the stainless steel strainer underline the Value of the model, which works according to the pass-through principle and is therefore rarely serviced and cleaned must become. The quality of the 3P compact filter obviously also convinces the buyers of this version on Amazon.
Rainwater filter Cistern filter 3P Retention and infiltration filter with stainless steel sieve for installation in the cistern, connection DN100. For rainwater harvesting in the house and for watering the garden
199.90 EURTo the product
| Type | Basket filter |
|---|---|
| Installation location | cistern |
| Housing material | PE |
| Material sieve | stainless steel |
| Difference in height of inflow / outflow | 0 cm |
| connection | DN 100 |
In terms of material, the 3P retention filter has exactly the same properties as the winner in our cistern filter comparison test based on the basic features and reviews on amazon.de. However, this model acts as a basket filter. This means that the dirt is "caught" in the filter basket. It is therefore very important to remove the basket regularly and clean it carefully. The customers at Amazon are positive about the Cistern filter. “He does what he should” is the basic tenor.
Rainwater filter cistern filter 3P garden filter S with plastic sieve for installation in the cistern or plastic cistern, connection DN100, height offset 0 cm. For rainwater harvesting in the garden
114.90 EURTo the product
| Type | Basket filter |
|---|---|
| Installation location | cistern |
| Housing material | PE |
| Material sieve | PE |
| Difference in height of inflow / outflow | 0 cm |
| connection | DN 100 |
And once again 3P: The proven specialist for cistern filters offers the best and a wide range of designs. With the garden filter, there is also a variant available for bargain hunters who want a stable filter at an affordable price. It works on the basket filter principle. Last but not least, the sieve, which is not made of stainless steel but, like the housing, is made of PE, ensures the lower costs. Reviewers write that the filter works well and picks up any dirt. An excellent option for beginners!
Purchase criteria
Type
Basket filter: The dirt particles "carried along" from the rainwater are collected in a filter basket. The basket needs to be cleaned regularly. If you only want to use the collected rainwater from the cistern for watering the garden, a cistern filter with a filter basket is sufficient.
Straight through filter: This variant separates the rainwater from coarse dirt and fine particles in a special way. It directs the water through a filter cartridge that filters the dirt out of the water. While the cleaned rainwater flows into the rain tank, the dirt flows through the ingenious inclination of the Filter or through the extremely smooth surface of the sieve fabric and flowing water further towards the sewage system.
Tips
The filter effect is increased by combining both techniques. It is therefore worthwhile to look out for models that are, so to speak, doubly equipped.
Place of installation
Cistern filters also differ in the location of their installation. There are models that you place in the downpipe, versions that you put in front of the Rain barrel (as an earth filter, which is installed above the tank in underground cisterns and rainwater filters that you install directly in the cistern ("correct" Cistern filter). Each of these variants can be useful. The most important thing is that you have easy access to the cistern filter - for maintenance and cleaning.
material
The housing of a cistern filter is usually made of plastic. This is quite practical, because if well processed, PP, PE and Co. prove to be resistant and easy to care for. The filter basket or the filter cartridge should be made of an extra robust and rustproof material - ideally stainless steel. Cheaper models have a sieve that is also made of plastic.
Resilience
Whether positioned on the downpipe, in the ground or in the rain barrel: The cistern filter should definitely have a high load capacity. With earth filters in particular, you have to check whether they can be driven on or at least can be walked on. Of course, the material of the filter also plays an important role here. The more robust it is, the more resilient the entire device is.
Frost resistance: If you want to install the cistern filter underground, frost resistance does not play a decisive role, because it is always a little warmer in the ground. If, on the other hand, you want to use the rainwater filter on a downpipe, even during the cool winter time, it must logically be frost-resistant.
Maintenance and cleaning effort
The maintenance and cleaning effort should be kept within limits. Fortunately, this is the case with most modern designs. The filter medium must be easy to remove for easy cleaning. To determine whether your targeted rainwater filter meets this criterion, you should read through customer reviews and authentic test reports. Basically, earth filters are definitely the quickest and easiest way to get hold of them.
Difference in height between inlet and outlet
If you retrofit the cistern filter, you must also take into account the difference in height between the inlet and outlet.
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frequently asked Questions
What is a cistern filter?
A cistern filter, also known as a rainwater filter or pre-filter, is a special filter element. The filter is used to Rainwater to be cleaned before entering the cistern. It acts as the first of several cleaning stages. Depending on what the collected rainwater is ultimately to be used for, there are different filter models.
Why is a cistern filter actually needed?
A legitimate question, because rainwater is actually clean enough to be used as service water (e.g. for flushing toilets or washing machines) without hesitation. However, it flushes on the way in Rain barrel often leaves and other plant parts as well as dust, other dirt particles or even insects. A cistern filter makes the water as pure as it originally fell from the sky.
How does a cistern filter work?
The rainwater is fed into the cistern filter and cleaned using the integrated filter basket or filter cartridge. In the case of a basket, the dirt remains in it until it is manually removed by the gardener. With a filter cartridge, it works like this: The purified water flows into the cistern, which acts as a rain collector; the dirt load, on the other hand, is reliably flushed into the sewer system thanks to a clever filter design and the flowing water.
How do I properly clean a cistern filter?
Some cistern filters are equipped with a so-called backwash device. In this case, you can easily perform the cleaning over it. Otherwise, take out the filter inserts and clean them as recommended by the manufacturer in the instructions. We advise you to clean the cistern filter at least every two to four months in order to constantly maintain the high functionality of the utensil.
Which brands offer good cistern filters?
The 3P brand is considered a specialist in high-quality cistern filters. Well-known and popular manufacturers are also Intewa and Wisy Linear.
Where is the best place to buy a cistern filter?
Cistern filters are available in well-stocked hardware stores and specialist garden centers. However, the selection at OBI, toom, Bauhaus, Hagebaumarkt, Hornbach, Dehner and Co. is generally not as large as at Amazon. The popular online mail order company also offers you a convenient ordering and return procedure.
How much does a cistern filter cost?
You usually pay between 100 and 300 euros for a high-quality cistern filter. Accordingly, the acquisition is quite costly, which is why you should make your selection carefully. Especially when you use the collected rainwater not only for your plants, but also If you want to use it for yourself in the house, we advise you to have a first-class rainwater filter to buy.
