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Rain Water Harvesting Filters for Rooftop Water Collection
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SM Enviro Solutions
Maharashtra, India
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Function of Rain Water Harvesting Filters
Rainy filters are designed with self cleaning mechanism and can be fixed to the wall by connecting Rooftop rainwater drain pipes. The rainwater along with dirt particles enters into the inlet of filter through the hollow pipe tangentially to the filter housing and rotating slowly along the periphery of upper housing so as to flow into the SS 304 filter element placed in lower housing of the filter unit in angular motion at specific velocity, which creates cohesive force and segregates dirt particles and clean water individually. However when the intensity of rainfall increases the high volume of water moves in circular motion with high velocity in the upper housing and creates a centrifugal force. In both situations, involving low and high intensity of rainfall , the working principle of the filter based on cohesive and centrifugal force respectively, aids the filter element to divert clean water into the cistern/ recharging well and simultaneously flushes out automatically sand, debris, and dirt particles through the drain outlet.
Advantages of Rain Water Harvesting Filters

  • By storing of water in the sump & reutilizing, around 35% of the annual requirement of a household can be met. Thereby a considerable amount on the water and power bill can be saved.
  • Dependency on water tankers, ground water and corporation water can also be much reduced
  • Recharge of Groundwater, replenishes the deeper layers of the earth’s crust which in turn insulates the earth from rise in temperature, reducing global warming
  • Reduces loss of top soil, surface runoff , thereby avoids silting of ponds and lakes
  • Reduces hardness , salinity and TDS contents in the bore well
  • Seawater ingression can be checked in costal line
  • All materials used in this Technology are eco-friendly and recyclable
  • Reduces significant carbon foot prints
  • Technology works on the Gravitational Principle
  • Reducing the Pumping of water from distant places , deeper depths & Movement of Water Tankers
  • Checks overexploitation of groundwater source.
  • Prevents water logging in low lying areas.

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