Overflow has the form of an opening located at the top of the bowl; this opening must be connected to the drain by a hose. Such a device avoids the transfusion of water over the edge of the sink: when the bowl overflows, water will flow into the sewer through the overflow and will not rise above the edges.
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Tap. The presence of a tap in the kit will eliminate the search for a suitable style. On the one hand, a tap in a set simplifies the purchase of a sink, but on the other hand, it often introduces certain restrictions. Thus, taps come in different designs and capabilities, as a result of which a complete solution may not satisfy user needs. We also note that this paragraph indicates only those taps that are officially presented in the portfolio of a particular manufacturer of kitchen sinks. Such sets can be assembled within one line or without being tied to a specific series, but purely according to style.
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Colander. The colander supplied with the sink is usually a mesh or hole bottom tray through which water can freely pass. Such a tray can be used in the same way as a common colander - for washing cereals and ready-made pasta, for washing and drying fruit, vegetables and greenery, etc.
Cutting board. Availability of cutting board in the product delivery kit. Such a board, when used, is usually attached directly to the sink; this may be especially relevant in cramped conditions where there is not much space on the kitchen table.
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Automatic valve. Device that facilitates filling the sink with water and draining this water. It consists of the valve itself, which closes the drain opening, and an exit button or lever
..., which is installed in a convenient place - for example, near the mixer. To drain water, it is enough to press a button or lever, opening the valve - it is much more convenient and comfortable than to lower your hand in the water and reach the drain hole.
— Mesh on bowl. Mesh made of durable wire mounted over the bowl; can be made removable or foldable. This device is mainly used as a dishwasher; it can be especially useful if the kitchen does not have space for a separate dryer, or if you periodically have to deal with a large number of dishes for which a separate dryer is no longer enough.
— Detergent dispenser. Availability of a dispenser for liquid detergents. This device looks like a container with a characteristic cap and a long spout: when you press the cap, a portion of the contents is delivered through this spout. The size of each portion is very small - by pressing the required number of times, you can quite accurately dose the amount of detergent. Dispensers of this design save space in the kitchen, since most of their body is located under the sink. This affects not only the ease of use of detergents, but also the aesthetic design of the kitchen interior.
— Siphon. The presence of a siphon supply kit is a characteristic curved tube for connecting a sink drain to a sewer. The complete siphon is by definition optimally compatible with the «native» wash; it saves you the hassle of searching and selecting.