Rainwater Harvesting

Discover how a rainwater harvesting system can reduce water use, save money on your water bill and create a more sustainable living space. 

Unlock the power of a home rainwater harvesting system

The global demand for clean water is outpacing supply, and the gap continues to widen. One powerful way to help bridge this gap is through rainwater harvesting.

Think about how much clean water your home uses every day: washing machines, toilets, showers, dishwashers, and drinking water. What if you could replace your municipal water with harvested rainwater? 

A well-designed rainwater harvesting solution can efficiently collect and deliver rainwater throughout your home, replacing up to 100% of your clean water usage.

Why choose a rainwater harvesting system from Grundfos? 

32,500+ gallons* 

Average collected rainwater per year

*The average precipitation in the US is 32” per year (source). Average roof size if 1,700 sq. ft. ARCSA = 1 inch of rain collected from a 1,000-sq. ft. roof is over 600 gallons. source

Up to 100%*

of household water (potable and non-potable) replaced by rainwater.

Up to 100%*

Saved on a homeowner's water bill when replacing potable and non-potable water.

*100% of household water can only be replaced when harvesting rainwater for potable (treated water safe for human consumption) and non-potable purposes (not safe for drinking, but safe for appliance use).

 

Rainwater harvesting facts:

  • Rainwater's low mineral content can reduce appliance and fixture maintenance costs.

  • Rainwater is superior to chlorinated and fluorinated water for horticulture and drinking water. 

  • Harvested rain reduces stormwater runoff.  

  • Rainwater from a well-designed, installed, and maintained system delivers potable water that exceeds the EPA drinking water standards. 

  • Decentralized rainwater harvesting relieves aging centralized water infrastructure by decreasing demand. 

  • Rainwater is a valuable industrial resource.

Choose the right rainwater harvesting system for your home

Finding the right rainwater harvesting system for your home and lifestyle can be challenging.  You also need to be aware of any local regulations and guidelines that apply in your area. We recommend you contact your local installer to help select the optimal rainwater harvesting solution.

Note: professional installer companies are randomly searched and displayed based on geographical location and not approved or certified by Grundfos

Our most popular rainwater harvesting pumps

A residential home with a home rainwater harvesting system installed. The rainwater is collected, filtered, and stored in the above-ground rain tanks until it’s needed inside the home for showers, toilets, washing machines, dishwashers, and even drinking water if properly filtered and treated.

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