Elsan Points Explained: A Boater’s Guide

If you are new to narrowboating, the phrase elsan points can sound a little mysterious. In reality, they are simply one of the essential services that keep life afloat clean, practical and manageable.

This guide has elsan points explained in plain English, including what they are, where to find them, how to use them, and the etiquette every boater should know. Whether you have a cassette toilet, a portable toilet or you are planning your first long cruise, understanding elsan disposal is part of confident canal life.

What Is an Elsan Point?

An elsan point is a dedicated waste disposal facility for emptying chemical toilet waste from boats. You may also hear it called a chemical toilet disposal point, sanitation station, cassette emptying point or CDP.

On the inland waterways, elsan points are commonly found at service areas, marinas, boatyards, sanitary stations and some visitor moorings. They are designed for the contents of portable toilet cassettes and similar containers, not for general rubbish, engine fluids or domestic waste water.

The word Elsan comes from a long-established brand associated with chemical toilets, but on the canals it is often used as a general term. When boaters say they need to find an elsan, they usually mean they need somewhere suitable to empty a toilet cassette.

Why Elsan Points Matter on a Narrowboat

Many narrowboats use cassette toilets because they are simple, compact and do not require a large built-in holding tank. That convenience comes with one regular job: emptying the cassette safely and hygienically.

Elsan points exist to keep sewage out of the canal, away from towpaths and out of ordinary drains. Used properly, they protect the waterways, wildlife, other boaters and the wider environment.

They also make cruising more flexible. If you know how to plan around disposal points, you can travel for longer without worrying about your toilet facilities.

What Can You Empty at an Elsan Point?

Elsan points are intended for toilet waste from portable or cassette toilets. This usually includes liquid waste, solid waste, toilet paper and any approved toilet chemical used in the cassette.

You should only use an elsan point for:

• Toilet cassette contents
• Portable chemical toilet waste
• Small quantities of rinse water used to clean the cassette
• Toilet paper from the cassette

Do not use an elsan point for anything else unless signs specifically say it is allowed.

What Not to Put Down an Elsan Point

Putting the wrong substances into an elsan point can cause blockages, damage treatment systems and create unpleasant conditions for everyone. It can also put facilities out of action, which is a problem for boaters relying on them.

Never tip the following into an elsan point:

• Engine oil, diesel, petrol or oily bilge water
• Paint, white spirit, solvents or varnish
• Wet wipes, even if labelled flushable
• Nappies, sanitary products or incontinence pads
• Food waste or cooking fat
• General rubbish
• Dog waste bags
• Grey water from washing up or showers, unless the facility specifically allows it

If you are unsure, do not tip it in. Use the correct waste disposal facility instead.

How to Find Elsan Points

Before setting off, it is wise to check where the next services are. The distance between facilities can vary, and some points may be temporarily closed for maintenance.

You can find elsan points by using:

• Waterway maps and cruising guides
• Navigation authority service listings
• Boating apps and online maps
• Marina and boatyard information pages
• Signs at canal service areas
• Recommendations from local boaters, lock keepers or marina staff

When planning a route, do not leave emptying until the cassette is completely full. Facilities may be busy, closed or difficult to access in bad weather. A sensible habit is to empty whenever you pass a convenient disposal point and the cassette is partly full.

What Does an Elsan Point Look Like?

Elsan points vary, but most have a clearly marked disposal unit, often in a small service building or beside a water point. The disposal opening may look like a large drain, hopper or stainless steel bowl with a lid. There is usually a tap or hose nearby for rinsing the cassette and washing down the area.

Some are simple outdoor units, while others are inside purpose-built sanitary stations. Many have clear signs explaining how to use them. Always read the instructions on site, as the layout and flushing mechanism can differ.

How to Use an Elsan Point Properly

Using an elsan point is straightforward once you know the process. The aim is to empty the cassette cleanly, rinse it if appropriate and leave the area ready for the next person.

Step-by-step guide

• Check that the facility is an elsan point and not a general drain.
• Wear disposable or washable gloves if you prefer extra protection.
• Open the disposal lid or hopper carefully.
• Remove the cap from your toilet cassette spout.
• Hold the cassette securely and point the spout into the disposal opening.
• Press the cassette air button if it has one, as this helps the contents flow smoothly.
• Empty steadily and avoid splashing.
• Use the rinse tap or hose if provided, keeping it away from anything that may contaminate drinking water fittings.
• Rinse the cassette, empty the rinse water into the elsan, then replace the cap securely.
• Flush or wash down the disposal area if the facility has a flush system.
• Close lids, turn off taps and leave the area tidy.

Take your time, especially if the cassette is heavy. A controlled empty is much better than rushing and making a mess.

Hygiene Tips for Using Elsan Points

Good hygiene makes the job much more pleasant and helps keep facilities safe for other users. It does not need to be complicated, but a few habits make a big difference.

• Keep a dedicated pair of gloves for toilet emptying.
• Carry hand sanitiser for times when soap is not available.
• Wash your hands thoroughly afterwards whenever possible.
• Do not let cassette parts touch drinking water taps.
• Use only the rinse hose provided for toilet waste, not a fresh water hose.
• Keep a small cleaning kit on board for spills.
• Make sure the cassette cap is tight before carrying it back to the boat.

If there is a spill, clean it as well as you can. Most boaters understand that accidents happen, but leaving a mess is poor etiquette and unfair on the next person.

Elsan Etiquette: How to Be a Considerate Boater

Elsan points are shared facilities, so considerate use matters. A clean and working disposal point benefits everyone on the cut.

Good elsan etiquette includes:

• Waiting your turn without crowding the person using the facility.
• Not using the drinking water tap for rinsing toilet equipment.
• Leaving the area cleaner than you found it if possible.
• Reporting blockages, leaks or overflowing facilities to the relevant authority.
• Not forcing extra waste into a blocked or full disposal point.
• Keeping dogs and children away from the disposal area during use.
• Being quick but not careless if others are waiting.

If a facility is out of order, do not try to bypass the problem. Look for the next proper disposal point.

Common Mistakes to Avoid

Most problems with elsan points come from avoidable mistakes. If you are new to boating, these are the ones to watch for.

Leaving it too late

A cassette that is completely full is heavier, harder to carry and more likely to spill. Emptying earlier makes the job easier.

Using the wrong tap

At some service points, there may be both drinking water and rinse water. Do not use a drinking water tap or hose for toilet equipment.

Adding unsuitable toilet products

Thick toilet paper, wipes and non-dissolving products can cause blockages. Use toilet paper that breaks down easily and never put wipes into the cassette.

Ignoring local signs

Some facilities have specific instructions, restrictions or temporary notices. Always check before use.

Rushing the empty

Pouring too quickly can cause splashing. Use the cassette vent button if fitted and pour steadily.

Cassette Toilet Chemicals and Elsan Points

Many boaters use toilet chemicals to reduce odour and help break down waste. There are different types, including traditional blue fluids, green alternatives and bio-friendly products.

Not every sewage treatment system accepts every chemical, so check any signs at the disposal point. Some sites may request that only certain products are used. If you are choosing a chemical, look for one suitable for cassette toilets and follow the instructions on the bottle.

Using too much chemical is not usually helpful. It can be wasteful and may make disposal more unpleasant. Use the recommended amount for your cassette size and expected emptying frequency.

Planning Your Toilet Routine While Cruising

A little planning prevents most toilet worries. Before a longer cruise, check the next few service points and consider how many people are on board. More people means the cassette will fill faster.

Practical planning tips include:

• Empty before mooring somewhere remote for several days.
• Carry a spare cassette if your boat layout allows it.
• Know where the next two disposal points are, not just the next one.
• Check opening times if using a marina or boatyard facility.
• Keep toilet chemicals, gloves and cleaning supplies topped up.
• Do not assume every water point also has an elsan point.

A spare cassette can be useful for extended cruising, but it must be stored securely and hygienically. Make sure caps and seals are in good condition.

What If an Elsan Point Is Blocked or Out of Order?

If an elsan point is blocked, overflowing or unusable, do not add more waste. That only makes the problem worse and may create a health hazard.

Instead:

• Close the lid if safe to do so.
• Look for a notice with a contact number.
• Report the problem to the navigation authority, marina or site operator.
• Use another disposal point.
• Let nearby boaters know if appropriate.

It is frustrating when a facility is unavailable, but using it anyway can put it out of service for longer.

Elsan Point Versus Pump-Out: What Is the Difference?

Elsan points and pump-out facilities both deal with toilet waste, but they are not the same.

An elsan point is used for portable cassette toilet waste that you carry to the disposal unit yourself. A pump-out is for boats with a fixed holding tank. The tank is emptied through a deck fitting using a pump-out machine and hose.

Cassette toilets are popular because they are simple and do not need paid pump-out sessions, though you do need to empty them more often. Pump-out toilets can hold more waste, but they depend on access to working pump-out equipment.

Neither system is perfect for everyone. The right choice depends on your boat, cruising style, budget and personal preference.

Frequently Asked Questions

1. Are elsan points free to use?

Many canal elsan points at public service areas are free for licensed boaters, but some private marinas, boatyards or campsites may charge or restrict access to customers. Always check local signs before using a facility.

2. Can I empty a cassette toilet into a normal public toilet?

It is not usually recommended unless a site specifically allows it. Cassette waste may contain chemicals and can be awkward to empty without spills. Use a proper elsan point whenever possible.

3. How often should I empty my toilet cassette?

It depends on cassette size and how many people are using it. As a rule, do not wait until it is overfull. Emptying when you pass a convenient elsan point is often the easiest routine.

4. Can I rinse my cassette at the drinking water tap?

No. Keep toilet equipment well away from drinking water taps and hoses. Use the rinse hose or tap provided at the elsan point, and avoid contaminating fresh water fittings.

5. What should I do if there is no elsan point nearby?

Plan ahead and travel to the next proper disposal facility. Do not empty toilet waste into the canal, hedges, towpath drains or ordinary surface water drains. If you cruise regularly in quieter areas, consider carrying a spare cassette.

A Simple Part of Responsible Boating

Once you understand elsan points, they become a normal part of narrowboat life. The key is to use the correct facility, empty carefully, keep toilet equipment separate from fresh water gear and leave the area clean for the next boater.

With a little planning and good habits, cassette toilet disposal is quick, hygienic and stress-free. It is one of those practical boating skills that soon becomes second nature, and it helps keep the waterways pleasant for everyone who shares them.