Knowing how a rain chain works is key to getting the most from this practical yet decorative alternative to a downspout. They are attached to gutters and eaves, and work by channelling rainwater into barrels, landscaped flowerbeds or ornamental water features. They can also be attached to sheds, garages and other garden buildings.
Although they work in exactly the same way as a downspout, rain chains are a much more attractive option. They're a real asset if you're interested in finding out more about alternative ways to integrate rainwater harvesting into your landscaping that doesn't involve hefty water barrels.
There are practical advantages to using rain chains as well as aesthetic ones. Compared to a downpipe, they help slow the flow of water, which can reduce the risk of flooding around your home. A rain chain directs water from your roof to the ground in a more controlled way, so it improves rainwater management in your garden too.
How does a rain chain work?
Rain chains work in the following way. Rainwater collects in the gutters and begins to drain, following down the rain chain to the ground. During this process water is slowed down, therefore reducing soil loss and erosion, as well as avoiding drainage issues.
"A rain chain works by taking water from the roof and directing it safely to the ground in a controlled sequence," explains technical expert Jack Middleton. "The process begins when rain falls onto the roof and flows into the gutter. Instead of being channelled straight into a downpipe, the water enters the top of the rain chain, which is attached to the gutter or fascia."
The best rain chain ideas are made up of a series of cups or linked sections that allow the water to travel downward. "Each cup captures a portion of the water and channels it to the next cup or link below," says Jack. "This slows the speed of the falling water, which reduces splashing and helps prevent soil erosion around the foundation. The cascading movement also makes it easier to direct the water toward a designated area for collection, such as a drain, a gravel bed, or a rain barrel."
Jack Middleton has years of experience in product design and installation, which ensures technical precision paired with a practical understanding of homeowners’ needs. Recognised for translating complex specifications into clear, approachable advice, this gives Jack the technical and practical knowledge to advise on water management solutions to create innovative, functional outdoor spaces.
What are the benefits of using a rain chain?
The controlled flow offered by rain chains is important because it prevents damage that can occur if water falls freely from the roof. "Fast, uncontrolled runoff can erode soil, damage plants, and even undermine foundations over time," says Jack. "By using a rain chain, the water is guided gently where you want it to go, preserving the surrounding landscape while also offering the option to harvest rainwater for garden use."
Rain chains enhance the visual and auditory effects of moving water, which can also help you monitor heavy rainfall and identify blockages, adding both practical and aesthetic benefits to your garden design.
Rain chains are also easy to install and maintain, according to garden drainage expert Jess Thomas. "Rain chains are simple to put in place, and the open design of the chain makes them easier to maintain than a downspout, as they are not as prone to becoming blocked. If using a cup style chain, the cups may have holes at the bottom to allow water to pass through, but if not water will be passed along once each section overflows."
As rain chains direct water into the ground or other collection point, they reduce the amount of water that ends up in storm drains, which can lessen the strain on water treatment facilities. You can also allow the rain chain to flow into a flower bed, watering the bed directly every time it rains, which is a great way of saving water in the garden.
Jess Thomas is managing director of Drainage Central and a recognised expert in the drainage and plumbing industry. He is dedicated to helping homeowners find effective solutions to their drainage problems.
Shop rain chains for your outdoor space
This decorative design will add a vintage vibe to your space. Featuring seven hummingbird and cup holders on the chain, it's a pretty way to divert water to your flowerbed or water butt.
Made from iron, this decorative rain chain with a rustic finish makes a great alternative to a traditional downspout. It measures 2.5m long and is easy to install using the simple hook at the top.
Made from copper, this contemporary rain chain features 25 cups along its length and can be installed in a matter of minutes using the included V-hook. You can also buy a gutter adapter for a neater installation.
Where is the best place to put a rain chain?
Correct placement is one of the key considerations when making sure your rain chain works efficiently. You should consider the stability, openness and protection that the area can provide.
First, check if your guttering or the garden building you have in mind is strong enough to handle the additional weight of a rain chain, especially during heavy rainfall.
"It's also a good idea to avoid placing rain chains somewhere that is exposed to strong winds, as the wind can push the water off the chain and onto your house," says Jess Thomas. "The base of the chain should be positioned far enough from the wall to prevent moisture accumulating."
There are several places where it can be particularly beneficial to have a rain chain. "Placing a rain chain on a corner that has an overhanging eave ensures that water is directed away from your home, preventing it from running back onto the walls where it can lead to dampness," says Jess.
Gutter endings are another area that works well. "The end point of gutters is somewhere a rain chain will naturally fit as this is where downspouts are usually installed."
You can also hang rain chains from pergolas and gazebos, as well as garden sheds and garden offices.
Another rainwater harvesting idea worth considering is adding water butts to make your garden greener by conserving water. It's just one of the many ways you can make your garden more eco-friendly.
