Self-cleaning Purain rainwater inlet pre-filters have the highest rainwater capture of clean rainwater with exclusive hydraulic jump technology patented by Intewa.
Using the unique jump filter design, Purain filters catch 100% of rainfall up to a certain flow rate. At higher flow rates, the filter is vigorously cleaned using what is called a hydraulic jump action. This leads to the highest overall water capture efficiency regardless of geography.
For grey water and storm water management applications, Purain pre-filters guarantee an effective reduction of debris, and provide a cleaner water to process for end use applications.