When does a dry separation toilet see some water?

08.06.2021 15:24

World Ocean Day Kildwick Dry Separation Toilet

When does a dry separation toilet see some water?

As your on-board toilet for the boat!

Today, on World Ocean Day, we're not just saying “Ahoy!”. Instead, we are inviting all aquatic enthusiasts to discover the circular economy of the… toilet.
Let’s raise awareness in regard to the recent wastewater problems and their potential solutions.

Whether we’re braving the waves on the big wide sea or leisurely cruising along a canal of the Loire, we all need to go to the bathroom at some point.

And this is where we all need to make a commitment. Because the fecal contamination of our water systems is unfortunately a quite urgent matter. 

World Ocean Day Water Pollution due to Faeces
© Kildwick/Alexander & Christiane Graell

Since 2020, individual tourism has become far more popular than ever before.
It’s also attracting more and more people who previously favored other travel options.

While it’s particularly true for camping and vanlife, water tourism also sees a booming interest: Be it rafts for rent or sports boats. The element of water seems to magically attracts us humans.

But from the Alster to the Atlantic coast, a new phenomenon is on the rise. Which has less to do with magic and more with utter lack of respect.  And there are no gentler terms for feces thrown overboard. 

When sports and charter boats empty their holding tanks directly into the waters, it clearly goes against the regulations of water protection.
However, it also generally happens with nobody around, unseen and unmonitored. And who would be surprised if even the actual water protection regulations have only been in place since 2008.

So, what is the current situation?

On-board toilets with sewage treatment plants

With ferries and large ships, this is probably the most common case: Properly collected wastewater being discharged into a sewage treatment plant in port. This process is fairly clean.

And most modern ships such as some cruise liners now even have their own sewage treatment plants on board. Which are often quite sophisticated and in no way inferior to those on land.

Annoyingly, black(water) sheep also exist.

A romantic… Poop trip?

With small private sailing boats, the situation can be shockingly different.

Unfortunately, it seems way too many people think of the waterways as a free sewage disposal facility. At least, that’s what many of our boat-owning friends report.

Some countries, like the Netherlands, have meanwhile taken to fighting the legal loopholes with ordinances. And preventing illegal sewage discharges by literally sealing the holding tanks.

Meanwhile, the solution to the problem couldn't be simpler: If you don't want to or can't wait to go to the bathrooms in the harbor, you can opt for your own composting toilet on board. Everybody wins.

World Ocean Day Water Pollution due to Faeces
© Kildwick/Alexander & Christiane Graell

The freedom of having your own dry separation toilet on board

If you do not want to pollute the environment with a chemical marine toilet, a sustainable and mobile composting toilet is the bee’s knees.
Modern composting toilets can be customized in many ways, are leak-proof, space-saving, and can be cleaned and emptied conveniently and easily. The latter only under appropriate (and easy to follow) precautions on land. 

World Ocean Day Dry Separation Toilet against Water Pollution
© Kildwick/Alexander & Christiane Graell

Source dry separation toilet: It’s just the beginning

A dry separation toilet is truly just the beginning of our change of thinking as a global community. To squeeze the complex topic into a few phrases, let us summarize:

In the attempt to escape the vicious circle of black water, sewage treatment plants, and the interruption of the original nutrient cycle, several ideas were introduced over time.

In addition, we’re facing the global challenge of unfiltered wastewater discharged into waters in many regions of the world.
In this context, sustainable sanitation solutions must take into account the hygiene and safety aspects as well as mass suitability.
The latter has not been the case everywhere so far with sustainable composting toilets.


Not everyone has enough property/ land, or just options and ways to compost and reuse the waste. The legal regulations also differ greatly on the global scale.

On World Ocean Day, we hence want to emphasize our mission: To make the composting toilet as simple and sustainable as possible. As well as to keep making it more comfortable and more stylish.

Read more about the World Ocean Day.

With user feedback at the heart of our work, we’re proud and happy to see more and more KILDWICK dry separation toilets in many vans, garden, and holiday homes.

Boat owners are also starting to discover dry toilets — for sustainable change on World Ocean Day and beyond.

World Ocean Day Dry Separation Toilet against Water Pollution
© Kildwick/Alexander & Christiane Graell