In relation to the technology of pool water drainage to the filtration system, the pools are of two types:
with skimmers and an overflow chute.
Swimming pools with skimmers
For the first type of pools (with skimmers ), the water is sucked through skimmerswhich are located on the perimeter. In this case, the water level is 15 cm lower than the board and slab around the pool. The number of skimmers is determined by the flow rate of the selected filtration group as well as the water volume of the pool. It is important to determine the number and location of skimmers very precisely in order to avoid large "dead zones"/places where leaves, etc. are trapped.
Swimming pools with overflowing trough
In overflow trough pools the water level is level with the level of the pavement around the pool. This creates a vision of a common surface. The water overflows into an overflow channel covered with overflow grilles, which is located around the perimeter of the pool. It is desirable that this channel be located along the entire perimeter, but it can also be done only in certain sections. The water from the trough enters the so-called compensation/buffer tank, from where it is sucked up by the filtration group. It is a good idea to locate the tank and the technical room next to the pool itself.
Advantages and disadvantages of a system with skimmers
Swimming pools with skimmers are a lower investment compared to overflow chute pools. The pool itself is easier to build as no tank is made. Another advantage is the ease maintenance during their operation.
The disadvantage of pools with skimmers is that they require external piping around the pool walls. This creates the prerequisites for a possible pipe break when using the pool. Another disadvantage is that no matter how well the skimmers are positioned, there are always places where "dead zones" can occur. In the case of existing swimming pools for which no filter installation was foreseen when they were built, it is a good option to install monoblock. This saves the construction of a filter room.
Advantages and disadvantages of a trough system
The pools with an overflow chute have a more aesthetic look. Another advantage is the even flow of water and the absence of "dead zones". They have the possibility of automatic replenishment of water lost during evaporation and flushing of the filters.
In the case of basins with an overflow chute, the construction of a compensation tank is required, which increases the cost of the works (construction and installation works). It is desirable to have the possibility of gravity drainage of the tank. In these, it is necessary to make a very good leveling of the front winkle, from where the basin overflows, to ensure that the water overflows evenly.
Pools type "Infity"
An interesting type of pools are those with overflowing edge type "INFINITY". They have a very good architectural solution creating the illusion of infinity. It is achieved by overflowing the water only in a certain section and at a lower level. The overflow section is designed to visually merge with the horizon. This type of basins are suitable for terrains with a large elevation and a beautiful view.
