Rainwater harvesting has become increasingly more common in residential properties. As more homeowners are seeing the benefits of reusing their captured rainwater, commercial properties are looking to do the same as well. If the commercial building has a roof with a large area and uses for non-drinkable water, they may be the perfect candidate for commercial rainwater harvesting. In some instances, many property owners are finding they can use harvested rainwater for almost half of their daily water needs. This can cut down significantly on water costs each month. Reusing this amount of rainwater is also better for the environment, and doing so on a larger commercial scale would only benefit the environment further. Click here for a few myths on harvesting rainwater.

So what are some of the common commercial uses for harvested rainwater? Harvested rainwater can be used to flush toilets. In a large commercial building, this can account for a large percent of the water used every day. It can also be used for ground maintenance to help keep the grass and planting areas lush and healthy. Harvested rainwater can also be used for regular irrigation and for vehicle washing as well which could make rainwater harvesting especially beneficial for car washes.

Even those who are familiar with residential rainwater harvesting are curious about how it would work on a larger, commercial scale. So how exactly does commercial rainwater harvesting work? Commercial rainwater collection is the capturing and preservation of rainwater from the roofs for reuse in agricultural systems for potential usage and/or conservation for stormwater runoff enforcement. Commercial rainwater harvesting is specifically NOT reclaimed water, Reusing water, Recycled water, or gray water. However, it is still an asset to the company or property owner.

Many rainwater harvesters still have one looming question- Why commercial rainwater harvesting? First off, properly collected and stored rainwater can be used similarly to water from a municipal water source. However, it is free to acquire this water and the collection system is yours to own.

  • Collection and reuse reduce stress on supplies of public water, particularly at peak demand.
  • Commercial rainwater harvesting can allow a property to be permit-ready under EPA stormwater requirements.
  • Harvesting decreases runoff, a major feature of existing legislation to control stormwater
  • The water you capture on your property is free for you to use.
  • Rainwater is not heavy water, as opposed to groundwater. The absence of chemicals and minerals in the machinery and re-distribution systems avoids corrosion and size.
  • The cost of water is rising as groundwater resources are becoming more limited.
  • In some areas, drought is becoming more and more common and commercial property development has been inhibited or delayed as there are more restrictions on what is built.

Commercial rainwater harvesting is usually one of the least expensive aspects of building a new commercial building, so to install a harvesting system for a building under new construction, the overall construction price would not be drastically different. Most systems rely solely on gravity and weather which are free resources for property owners to use.