MagazínUV lamps and water disinfection in the garden pool

Do you want to use less chemical products to disinfect water in the garden pool? Then the UV lamp is the right solution.


Principle of UV lamp operation

Ultraviolet or UV radiation is electromagnetic radiation with a wavelength shorter than light. For humans it is invisible, but there are some animals that can perceive them. A natural source of UV radiation is the Sun. However, UV radiation can also be created by artificial means, using electrodes in a silicon tube filled with mercury vapor. These are beams that have the maximum bactericidal effects between 250 and 270nm.

Advantages of UV lamps

UV radiation does not affect the odor or the taste of the water in the pool. It does not change its composition and can reduce the content of bound chlorine. It is most gentle to the human organism. Water disinfection by UV radiation also has an economic point of view, namely the reduction of the amount of chemical disinfectants.

Disadvantages of UV lamps

We consider the short lifetime of UV lamps to be a disadvantage. In addition, UV rays can only be considered as an additional method of water disinfection in the pool. The problem is that the bactericidal effect decreases with increasing distance from the emitter, and for the proper operation it is necessary to use sufficiently powerful lamps, given the quantity of water flowing.

Used types of UV lamps

Monochrome UV lamps with a flow rate of up to 5 l / sec. The wavelength of their radiation is 254nm. However, these lamps can not disinfect water in pools from enzymes or micro-organisms, only damage their DNA, and this does not guarantee their elimination. Moreover, they are effective only at a water temperature of 15 - 35˚C. Polychromatic UV lamps in the range of 185 - 400nm, with greater flow, ensure the elimination of microorganisms in the pool, and their function is independent of water temperature.