Why Choosing Grey Water Safe Products Matters
When we think about environmental responsibility when travelling we may often think about how much plastic we use, how much we can recycle, or bringing a reusable water bottle. These are all important but we also need to think critically about what we rinse off or send down drains, particularly when it may go directly on the ground or feed into waterways, which is common when camping, caravanning or staying somewhere with limited wastewater infrastructure.
In these situations, the water from your shower, bathroom sink, kitchen and laundry or washing machine, can end up being reused, treated on-site or released into the surrounding environment. This water is known as grey water.
Choosing grey water safe products is a simple but often overlooked way to reduce our environmental impact, particularly when we're travelling through the very natural environments we're hoping to enjoy and protect.
What Is Grey Water?
Grey water is wastewater generated from activities such as showering, washing your hands, doing laundry and washing dishes. It is different from black water, which contains human waste from toilets.
Although grey water doesn't contain toilet waste, it isn't clean water. It can contain soaps, detergents, oils, food particles, hair, dirt and other substances from the products we use every day.
Where grey water is collected, treated or reused, the products that enter it can have a direct impact on how suitable that water is for its intended purpose, and a direct impact on the surrounding environment. Releasing wastewater into the wrong location, or toxic chemicals in wastewater, can harm waterways, vegetation and wildlife.
How Is Grey Water Used?
In a conventional home connected to a sewer system wastewater is generally transported to a treatment facility. Whereas when you're travelling in a caravan or motorhome, visiting a remote cabin, campsite, rural property or off-grid area, there are other forms of wastewater management. Some grey water may even be directed into gardens or landscaped areas for reuse, depending on the location.
When products containing unsuitable chemicals, salts or other persistent ingredients enter these systems, they can potentially interfere with treatment processes, affect soil and vegetation, or contribute to pollution. The potential negative consequences of poor grey water management can be particularly significant in environmentally sensitive areas.
What Makes a Product Grey Water Safe?
There isn't one universal ingredient, or set of ingredients, that make a product 'grey water safe'. Instead, it's about the overall formulation and how its ingredients interact with wastewater treatment systems, soil, plants and the environment.
When shopping, keep in mind all the products you use that are likely to flow into grey water, including all cleaning products, hand soap and personal care products.
When choosing look for products that are:
Natural and biodegradable
Low in harsh chemicals, fragrances and additives
Low in salts and other ingredients that can accumulate in soil
Phosphate-free where appropriate
Designed for septic, grey water or environmentally sensitive applications
Transparent about their ingredients and environmental claims, including those labelled as 'grey water safe'.
It is also important to follow the requirements of your particular grey water or septic system. What is suitable for one system may not be suitable for another.
All Water Used Goes Somewhere
It's easy to think of wastewater as something that disappears when we pull the plug or turn off the tap but every drop, drain and hose goes somewhere.
For travellers, particularly those exploring remote and beautiful environments, remembering this can change the way we think about the products we pack and how we use them.
Choosing grey water safe products and using them carefully ensures we consider the entire journey of a product, from the ingredients that go into it, to what happens after we rinse it away.
Making choices with this in mind is one way we can travel more thoughtfully and help keep the places we love exploring healthy.
