Rainwater filtration for rainwater harvesting via horizontal stainless steel filter grid. Installation Trident™ rainwater tankfilter within rainwater storage tank or separate filter manhole. This commercial Trident™ rainwater filter has been developed to be used in medium to large size rainwater harvesting systems. The highly efficient filtration process via horizontal stainless steel filter grid with optimised profile ensures maximum rainwater collection rate and rainwater filter efficiency, passive self-cleaning and optimal non-potable water quality in the rainwater storage tank. This produces precious, hygienic and soft rainwater for gardens, washing machines, toilet supply as well as for numerous industrial and commercial applications, e.g. water for cooling towers, car/lorry washing or other process water where rainwater usage is clearly of advantage.
Leaves and the majority of particles are retained on the grid until the self-cleaning process starts. The construction and the dimensions of the stainless steel grid of the rainwater filter make a high collection rate of up to 99% possible.
The rainwater filter grid should be located below the maximum water level of the rainwater tank. If the rainwater storage tank overflows, the Trident™ rainwater filter will be under water and the floatable dirt will be transferred into the surface water drainage system. Remaining debris, encrusted dirt and bio film will be removed from the stainless steel grid of the rainwater filter by the sprinklers. The sprinklers can be connected to the rainwater harvesting system and their water spray direction can be adjusted. This improves the self-cleaning effect of the Trident™ rainwater filter.