17 Amazing Alternative Rainwater Collection Ideas You Need To Know About

Don’t Miss These Rainwater Collection Ideas!

Collecting rainwater is an effective and sustainable way to reduce your water bills and help conserve water resources.

If you’re a reader of this blog, you’ll know that conventional rainwater collection methods involve using barrels or tanks to store water for later use.

But, there are many alternative rainwater collection ideas available that can help you harvest rainwater in a more creative way.

Alternative rainwater collection ideas include using a tarp, a swale, a rain garden, a green roof – and even a child’s swimming pool! Some of these solutions are good for small, urban spaces, while others are better suited for those of you with larger gardens.

Ultimately, your goal should be to find a solution that works for your location, climate, and rainwater harvesting needs.

There are many advantages to using alternative rainwater collection methods. With the right system in place, you can save money on your bills, collect rainwater for personal use and live a more self-sufficient, eco-friendly lifestyle.

Ok, let’s explore the top 17 alternative rainwater collection ideas you need to know about!

Table of Contents

What is Rainwater Collection?

Before I get into the details of alternative rainwater collection methods, let’s take a look at what rainwater collection actually is and how it can help you live a more self-reliant lifestyle – even if you do live in an urban area.

Rainwater collection is the process of collecting and storing rainwater for later use. The goal is to divert rainwater from rooftops, land surfaces, and other areas and collect it in a rain barrel or another container, like a tank.

The collected rainwater can be used for a variety of purposes, including watering your plants, flushing toilets, and washing clothes.

There are many benefits of rainwater collection, including:

• It is a sustainable and cost-effective method of conserving water.
• It helps to reduce the pressure on water supplies
• Rainwater collection can also reduce the risk of flooding and erosion.
• It helps to improve the quality of groundwater, by reducing the amount of pollutants that enter the soil.

17 Alternative Rainwater Collection Ideas

While traditional rainwater collection methods involve large barrels and storage tanks, these may not be practical for everyone, especially those living in small spaces.

Also, not everyone has the right kind of building to capture rainwater in the conventional way. Some of you won’t even have downpipes so it’s not as easy for you to harvest and store rainwater.

Luckily, there are plenty of alternative rainwater collection solutions that can be used to collect and store rainwater in a more compact and efficient way.

Let’s examine 17 alternative rainwater collection ideas that you can use to collect and store rainwater.

1. Rainwater Harvesting Bags

You may not be aware that you can buy flexible, durable rainwater harvesting bags which can be strategically placed in open areas, efficiently capturing rainfall for various purposes.

These bags are especially useful for urbanites who may not be able to easily store barrels or other large containers such as tanks on their property.

These bags can have many uses. For example, they can also be used as grow bags for growing fruits and vegetables on balconies or in backyards.

2. Rain Barrels with Built-In Planters

Combining functionality with aesthetics, rain barrels with integrated planters serve a dual purpose. Not only do they collect rainwater for reuse, but the built-in planters make green spaces look pretty.

If you do go for this option, make sure you rigorously filter your rainwater because soil could infiltrate the water from the planters depending on the style of the barrel.

There are many different types of rain barrels to choose from, but ideally the planters shouldn’t take up too much room so you can capture the rainwater you need.

3. Plastic Bottles

Transforming plastic bottles into rainwater collectors is an eco-friendly DIY solution and easy to do at home.

By arranging bottles strategically on your balcony, in your yard or garden, you can create a scalable rainwater collection system without too much hassle.

4. Use a Tarp

A straightforward and adaptable option, a tarp is an easy way to collect rainwater and is super low-cost!

Simply position a tarp in an open area, like on your balcony, and you can collect and store the rainwater you need.

5. Use a Trash Can

Using a trash can (or dustbin as we say in the UK) is a practical DIY approach and probably one of the easiest alternative rainwater collection ideas there is.

As long as you set it up properly with diverters and filtration, you can definitely succeed collecting rainwater in a trash can.

6. A Child’s Swimming Pool

A child’s swimming pool is an obvious method to capture rainwater in your garden. If you have one of these, you’ll probably have to regularly clean it out after a downpour as it is – so why not utilise one as a rainwater collection idea?

The large surface area of the pool can efficiently collect rainwater for use in gardens, to water your plants, wash your car as well as other household uses.

7. Use a Wheelbarrow!

Repurposing a wheelbarrow for rainwater harvesting adds mobility to water collection.

This DIY solution is particularly useful for transporting collected rainwater to different areas of a garden or yard, or even to your local allotment (if it’s close…)

8. Use a Bathtub

Converting a bathtub into a rainwater collection system is a bonus if you’re looking for larger storage capacity.

This approach is suitable for those of you with bigger properties and outdoor space – as well as a spare bathtub to hand…

9. Use a Cistern

When you think of a cistern you may think of the tank at the top of your toilet. But, did you know you can install a cistern for rainwater harvesting?

This is a more permanent solution for those of you with gardens, because cisterns can store significant amounts of rainwater for long-term use, so if you take rainwater harvesting seriously this could be an option for you.

10. A French Drain

Integrating a French drain into a rainwater harvesting system allows for efficient water collection and drainage.

You’ll need to fill a trench with gravel or rocks to direct water away from an area. This solution is ideal for managing excess rainwater and a good option for small spaces with weak drainage.

11. A Swale

Swales are landscape elements in the ground that can be strategically designed to direct water where it’s needed most and can keep your plants hydrated and fresh.

A swale may sound like a similar option to a rain garden (see below). But, swales are different because they are designed to slow down rainwater, while rain gardens absorb and store rainwater.

12. Use a Rain Garden

Rain gardens are depressed areas designed to collect and manage rainwater runoff.

They use a combination of plants and soil to filter and store rainwater. They are also very attractive and can make your garden look really pretty.

Just make sure you choose the right plants so your rain garden works properly!

13. A Green Roof

A green roof not only provides insulation, but also serves as an effective rainwater collector.

The roof is covered in vegetation which absorbs rainwater, reducing runoff, providing an additional layer of sustainability to buildings.

If you opt for a green roof, you will need to ensure you work out a way to capture and store the rainwater effectively – so it could be worth speaking with an expert to work out the most efficient method for your building.

14. A Permeable Pavement

Permeable pavements absorb rainwater, reducing runoff and flooding. This approach is particularly beneficial for managing water in urban and paved environments.

15. A Living Wall

A living wall uses plants to absorb rainwater, keeping your plants nourished and ensuring that rain doesn’t flood into certain areas.

They can also be very attractive and are especially suitable for modest, urban outdoor spaces.

16. A Water Wall

A water wall serves both as a decorative element and as a rainwater collector.

It’s designed to cascade rainwater down a vertical surface, so the rain can flood into the collection section at the bottom.

You will need to have sufficient outdoor space to properly make use of this rainwater collection idea. Water walls can look very attractive so are well worth considering.

17. Use a Rain Chain!

Rain chains are decorative alternatives to traditional downspouts, guiding rainwater from the roof to a collection point.

They can be very visually appealing and you can choose from a range of options available on the market, or even make your own!

They are especially useful for those living in cities with only a balcony for outdoor space.

Alternative Rainwater Collection Ideas: Final Thoughts

Now that you have learned about 17 alternative methods of rainwater collection, you can choose which one suits your needs.

Keep in mind that the method you choose will depend on various factors, such as the amount of rainfall in your area, the size of your catchment area, and your purpose for collecting rainwater.

Some methods, such as plastic bottles and tarps, are simple and inexpensive to set up, making them ideal for small-scale collection.

Others, such as rain gardens, swales and green roofs require more planning and investment, but can capture a larger amount of water and are easy on the eye.

Alternative rainwater collection ideas offer a sustainable and cost-effective way to conserve water and reduce your environmental impact.

By implementing one of these methods, you can build on your self-sufficiency skills and have a lot of fun along the way!

Alternative Rainwater Collection Ideas: Frequently Asked Questions (FAQs)