Rainwater Harvesting Process

Rainwater Resources™ Sustainable System combines Wisy™ technology with proven system design to assure that your rainwater harvesting is worry free and low maintenance. Our system does more than solve stormwater problems; it provides you with an asset to be used. Its proprietary design provides consistent, odor-free, slime-free, and crystal clear water. You will be Celebrating the Rain!



Capture | Convey

Rainwater is collected from the roof and is directed to the pre-filter through conveyance pipe. 


First-Flush Diverter | Pre-Filter

When the water first enters the Wisy™ Vortex filter it is diverted to the overflow. Most of the contaminants are rinsed from the roof during the start of a rain event. Diverting this First-Flush from the tank helps to improve the stored water quality.

After adequate time has been given for the initial rinse, The Vortex filter automatically -  using centrifugal action - begins filtering the water down to 280 microns. The filter's stainless steel diamond cut and vertical design highly oxygenates the water while filtering.



It is very important that you do not disrupt the natural forming biofilm when water is introduced into the tank. The Wisy™ Smoothing Inlet is an all stainless steel device designed to introduce the water into the tank without disrupting the biofilm. It also serves to further oxygenate the water and evenly disperses it throughout the tank in an upward and outward motion. 



Our superior design includes cultivation of a healthy, all-natural biofilm on the bottom of the tank. This complex biofilm reduces the organic matter and keeps the water odor-free, slime-free, and crystal clear. 



We have numerous storage tank options. Tank selection is based on three main criteria: size, location, and material. Our engineers work with your design team to assure all aspects of the design are considered and the tank of choice is integrated into your application. 


Capacity Regulator™ (for Runoff Compliance)

This feature is engineered into the system to meet the goals set forth by various stormwater permitting agencies.  It will create capacity for MS4 compliance. 


Output (Supply)

The Floating Filter intake is used to extract the water from the tank about 6 inches below the surface of the water where the quality is at its best. The intake is attached to the selected pump or appropriate gravity output port. For pressurized systems, there are multiple options for pumping. Pump selection is based on specific application. 


Filtration and Purification

Working in conjunction with our sister company, PerfectWater™, our Certified Water Specialists make selections appropriate to the application.The filtration/purification system treats the rainwater to drinking water standards, or standards appropriate based on end use. 


Control Options

Rainwater Resources™ offers multiple control options such as a:

  • Second Source Backup: Controls can be integrated to accommodate a second water source to be used as a backup supply. When the storage tank water level is low, and water is called for, the second source back-up will automatically and seamlessly (manual option available) switch the distribution over to the backup source. 
  • Liquid Level Indicator: A liquid level sensor and signal transmitter can be integrated in the primary tank. The transmitter will send 24/7 tank volume data to a remote display/receiver mounted in a location of choice.
  • Commercial Controls: Monitoring and device activation is available for many processes. Rainwater Resources™ provides design consultation to assist in selecting the system that is right for your project.

Overflow | Recharge

An overflow device is required. Our systems Wisy™ Multi-Function Device is designed like no other.  It routes  the overflow water from the tank to groundwater recharge, and functions as a gate, preventing debris and insects from entering the tank.


Use | Celebrate The Rain!

Rainwater can be used in the same way any water is used:

  • Irrigation
  • Commercial and Industrial Purposes
  • Indoor Potable Use
  • Cooling Towers
  • Fire Supression
  • Agriculture Use

Or your system can be designed to:

  • Replenish Ground Water
  • Reduce Stormwater Runoff (Compliance with MS4)

Captured rainwater has a tremendous potential to save water and to meet indoor and outdoor water demands. 

Have Questions?