Chemicals Dosing
If you do not have covered swimming pool or if you swim while the enclosure is open, the water surface is exposed to UV radiation. This radiation breaks apart free chlorine contained in water.
Disinfecting agents dose the night after the swimming. By the next morning the water will be clean and these substances evenly diluted.
Gravitational pipeline is used in connection with overflow trough and retention resevoir. Its design is quite different from the pressure pipeline (filtration circuit). Incorrect design may later cause congestion, "humming" in the pipelines and insufficient filtration.
All fields have to be filled.