The original water source for this cabin was a well. Over the last few years the homeowners had dealt with numerous water quality and low capacity issues. Access to municipal water was not an option, and the option to re-drill another well posed too high of risk due to the geology of the area. At the time we were contacted the home was only 5 years old. They were currently facing water problems to the point that they had no water available on site, but paid to truck in 300 gallons at a time.
Due to where the home resided, in a very mountainous area with limestone rock, digging to accommodate below ground storage was not an option. The homeowners were very particular that the above ground storage be aesthetically appealing in order to complement their beautiful mountain cabin.
Rainwater Resources™ worked with the homeowners to design and integrate a rainwater harvesting solution to meet these needs.
The catchment surface was 4,500 square feet, and the average annual rainfall for that area was 54 inches. Based on that information, anticipated demand, and other factors, our design team recommended a storage capacity of 6,000 gallons.
Part of the creative integration was using a storage tank that both met the needed capacity and was able to fit in an existing narrow breezeway located below the house. The homeowners loved this solution as it would not produce any negative aesthetic impact and would utilize a wasted space.
Collection came from an asphalt shingle roof. We connected the 4 inch conveyance from all seven downspouts and routed it just below the decking to a Wisy™ Vortex filter. The water was introduced into the primary storage tank through a Wisy™ Smoothing Inlet. Four 1,500 gallon, polypropylene, storage tanks were used and daisy-chained together to accommodate the needed capacity.
The rainwater is pressurized to the household distribution system by a constant pressure submersible pump contained inside the tank. Water enters the pump through a Wisy™ Floating Filter intake. Potable water filtration/purification is provided by high quality sediment and carbon filtration before entering the Ultra Violet (UV) disinfecting system. The UV system includes a lamp-out solenoid which will automatically shut off the water should a lamp outage, or other error, occur on the disinfecting system.
This system also includes a wireless liquid level indicator so that the homeowner can know when extra water is available for high volume watering needs.
At the one year mark the homeowners called and reported how excellently the system was working. They said that, many of their neighbors still struggled with well water problems, but that they are enjoying crystal clear, perfectly soft, great water.
The water is used for drinking, washing clothes, showering, and all household water needs.
We are now working on additional storage in a different location to catch more water to be used for irrigation.