The only moving part is the automatic wiper, which keeps the quartz sleeve free from deposits.Ĭoncentration (ppm) 3.5 3 2.5 2 1.5 1 0.5 0 Dec 98 swimming pool water purification with UV.explained in technical detail Hanovia equipment is effective within the guidelines of the Pool Water Advisory Group and allows safe reduction in residual chlorine levels to the new recommendations, whilst achieving a total to bound ratio>4:1.
