Active oxygen is too unstable to guarantee a permanent disinfection of the water. Hydrogen peroxide and potassium persulfate are the best known forms of active oxygen sources. The oxygen level should be replenished when the oxygen level is 35 mg / l.

Shock disinfection is performed at least once a month with concentrated oxygen or chlorine. Active oxygen tends to lower the pH value, which must remain at 7.2-7.6. The active oxygen content can be measured with DPD 4 tablets.

COVID 19 - POSSIBLE DELAYS OF DELIVERY

Dear customers,

We would like to inform you that despite the current difficult situation related to the COVID-19 virus, we have taken all necessary measures to maintain the smoothness of our service and delivery times for our customers.

Unfortunately, the increasing number of border controls throughout Europe, as well as the closing of borders with neighboring countries, also affects the areas of our operations and services. We expect delays in procurement and deliveries, so at the moment we are unable to guarantee exact delivery dates.

We kindly ask you to be patient in case the goods do not arrive on time. The current situation presents us with many challenges and we are doing everything we can to adapt to these difficult conditions.