Comparison Grohe BauLoop 31368001 vs Imprese Bilina 55225

— Feather. Single-lever faucets, in which the joystick lever for controlling the flow of water is made in the form of a small narrow stick. It resembles a pen in shape and structurally enters directly into the cartridge (unlike conventional models, where such a lever is part of a plate that is attached to the cartridge). The pen can be placed both vertically and horizontally (depending on the design of the mixer). At a minimum, these products have an unusual appearance, and for some users, a joystick pen may be more convenient to use. On the other hand, such joysticks are found mainly among premium mixers.

— Elbow (medical). Taps with a water regulation lever of an unusual shape, easy to use with your elbow. Such models are especially in demand in medical institutions, when the hands of a medical employee must always be clean and close the tap with them — already a violation of hygiene standards.

— Joystick with a hole. The characteristic hole in the handle of single-lever taps plays both a decorative role and a practical one. For some models, it serves as a design element of the tap, and in general, the hole can be used to conveniently adjust the pressure and temperature of the water (by prying with a finger and then turning or raising/lowering the lever).

An angle to turn the drain. It is worth considering that in our case the angle is not considered relative to the center position, but the overall angle is right-left. In this way, the 110 degree value allows to rotate the mixer slurry with respect to the center position by 55° to the right and left.

Distance from the fixing point (for vertically mounted taps) or from the centre of the mounting hole (for horizontally mounted taps) to the middle of the spout. It is a characteristic that determines the "reach zone" of the tap.

The jet height is usually specified for taps with horizontal installation (see "Type of installation"). It is measured from the base of the tap to the spout outlet. The large height of the spout is important primarily for kitchen models (see "Suitable for"), because it allows you to place large dishes in the sink. This parameter is directly related to the height of the spout (see above): the height of the jet cannot be greater than the height of the spout. Thus, in fact, one has to find a compromise between the height of the jet and the dimensions of the tap, especially if there is little space for its installation.

The diameter of the cartridge used in the tap.

The cartridge is called the "heart" of the tap — the part directly responsible for adjusting the pressure and/or temperature of the water (in some models — also for switching between spout and shower). The main dimension of this part is precisely the diameter. However, in fact, this size becomes relevant only if it is necessary to replace the cartridge. But when choosing a tap, it does not really matter — from the point of view of characteristics, only the overall dimensions of the device depend on the diameter of the cartridge, and then quite approximately and without a fundamental difference between individual models.

The maximum water flow during the operation of the tap, in other words, the maximum amount of water that it can pass through in a minute. This characteristic is important, foremost, for models designed for baths (see "Suitable for"): the greater the throughput, the faster the bath will fill. However, the meaning of this paragraph is not limited to this. First, flow information can be useful in certain calculations related to water supply — for example, to calculate the required pump capacity. Secondly, high-end taps can be equipped with aerators to achieve a powerful and efficient jet with low water consumption; the consumption indicated in the characteristics allows you to evaluate the efficiency of such devices in comparison with analogues.

The lowest inlet pressure at which the tap is able to fully perform its functions of unhindered water supply.

The highest inlet pressure at which the tap is able to operate in a trouble-free mode with minimal risk of premature failure. In other words, this is the ultimate strength of the tap. Note that for normal east european use, it can be assumed that the maximum pressure in the water supply is 6 bar. One should focus on that value and choose a model with a small margin of max pressure in order to avoid leaks in the tap nodes during pressure surges in excess of the norm. Note that in plumbing with a centralized water supply, the pressure can reach 10 bar. Therefore, for expensive taps that make high demands on the inlet pressure, it is necessary to buy special reduction gears.

The diameter of the holes required to install the tap. This dimension allows you to assess whether the tap will be compatible with a sink, wall, etc., what dimensions the additional parts should have to install it, and whether the holes will need to be widened or narrowed.