Overflow
The overflow is a special opening located at the top of the shell. It prevents the transfusion of water over the edge: reaching the overflow, water through a special hose enters the drain pipe, which saves the bathroom from the «flood». Such a hose may be part of the wash basin, but most often it has to be purchased separately.
Note that
overflow is designed for situations when the drain itself is closed (for example, by plugging); but if the drain is clogged lower (for example, in a siphon), this function will be useless - the water will still have nowhere to go from the filling shell. And therefore, the presence of overflow in the design of the wash basin does not eliminate the need to monitor the state of the sewer.
Antibacterial coating
Special hygienic coating in the washbasin. This coating prevents the reproduction of pathogenic bacteria and helps to maintain the cleanliness of the washbasin, reducing the likelihood of plaque and unpleasant odor. In addition, the smooth
antibacterial surface also improves the appearance of the product.
Note that such products still have to be washed periodically; however, this has to be done less frequently than in the absence of antibacterial coating.
Tap hole
The presence in the design of the wash-basin
the opening for the installation of the mixer. This function is useful if you want to equip the washbasin with its own mixer: it is much easier to install it directly on the sink than to mount separately or to select a place for the sink under the already installed mixer. In such cases, a
sink without opening for mixer.
When choosing a model with this function, you should pay attention to the number of holes. For a conventional mixer, one «footprint» is enough, but for embedded cranes, where the drain and controls are removed separately, and mounting holes will need the appropriate amount.
Country of origin
There are many national stereotypes: many users find certain countries more attractive than others. However, nowadays these stereotypes are practically unfounded. Firstly, in the country of origin of the brand, often only the headquarters of the manufacturer is located, and the production may be located in another state. Secondly, the origin of a certain country is not yet a guarantee of quality: it all depends on how carefully a particular manufacturer controls its products. Therefore, to assess the quality, it is worth focusing not on “nationality”, but first of all on the reputation of a particular brand and the price category of the product. Among the countries represented are the following:
Belgium,
Germany,
India,
Spain,
Italy,
Poland,
Portugal,
Slovenia,
USA,
Turkey,
France,
Czech Republic,
Switzerland,
Sweden,
Japan.
Manufacturer's warranty
The warranty period declared by the manufacturer for this model - that is, the period during which the manufacturer guarantees normal operation. The specific terms of the warranty may vary, but as a rule it applies to factory defects and faults caused by the manufacturer/seller and detected in normal use, without violating the rules.
The longer the warranty period - the more reliable is the washbasin, the higher its overall quality, other things being equal, but the more expensive it will be compared to the analogues. And the guarantee can be measured even for decades - besides the basic
5 years and
10 years, there are models with 25-year warranty and even with lifetime.