PURION 2001 PVC-U OTC Plus

The Purion's pool systems are not exposed to overheating problem if the UVC system should be switched on, but no water flow takes place.

No. We recommend that the UV system always put the UV system into operation in combination with the pump, which uses the full flow for disinfection. Since the system has a relative large diameter, there is no failure, the pump should be defective and this does not lead to water flow when the UV lamp is switched.

For an optimal effect, we recommend changing the entire pool content at least three times a day. However, the system should be in operation at least 8 hours a day so that there is also sufficient ventilation and filtration. The circulation rate is therefore based on the respective performance of the pump used and sand filter. The net performance of the pump can be reduced by cable lengths and heights to be overcome.
Also interesting: In our compact systems, the pump, sand filter and UVC system are ideally coordinated and already pre -assembled.

There is a simple calculation for this: the pool content should flow through the UV-C system at least three times a day in order to kill a large part of the algae by mixing a corresponding mixing. If the algae growth is reinforced, for example, if the phases of extreme solar radiation or after strong rainfall or a thunderstorm, we recommend the circulation rate to four times upheaval.
Regardless of the circulation rate, we recommend that the system have min. 8 hours a day in operation in order to enable sufficient ventilation and filtration.

If all three basic recommendations for the use of UV-C system in the pool area, the pool can be operated completely without chlorine. If necessary, the selective application of a biological flocculation means is worthwhile. However, our high-quality UV-C lamps allow a combination of chlorine and UV-C, since no ozone is created that would be reactive with chlorine.

The high-quality UV-C lamps of the Purion brand are durable and very powerful. They produce a very high UV-C content. The lamps we use in the pool area are also used in other facilities in drinking water preparation. The UV lamps used do not emit any radiation below 250nm, which excludes the formation of toxic ozone. Thus, the Purion systems can be used in combination with other preparation procedures that e.g. chlorine.

No, from our point of view, ozone should not be used in the pool area under any circumstances. Ozone is highly toxic. Excess ozone has to be destroyed again, whereby it is usually unclear how much ozone is left. In addition, Ozon reacts with chlorine, so that the effect of both procedures is greatly reduced. Cheap produced UV lamps often also emit radiation below 250nm, which means that ozone can be formed. This is excluded from the Purion systems.

Each UV-C lamp has a technical drop in the UV-C performance. The manufacturer guarantees that the system will reach 60% UV-C output after 10,000 hours. The specified data on the systems always refer to this 60% performance. However, the drop in performance continues to increase from a term of 10,000 hours. Therefore, the lamp still works, but there is no longer enough UV-C output for an optimal disinfection result.

A service life monitoring is recommended for all users who do not permanently let the system switch on. A change of the lamp is recommended every 10,000 hours, since the manufacturer also does not guarantee the performance, i.e. the amount of UV-C radiation dose required for safe disinfection.