How to Use an Elsan Point: A Practical Canal Guide

If you are new to narrowboating, learning how to use an Elsan point is one of those practical skills that soon becomes part of everyday canal life. It might not be the most glamorous job on board, but it is important for hygiene, comfort and looking after the waterways.

An Elsan point is a dedicated facility for emptying the waste cassette from a cassette toilet. You will find them at many canal service points, marinas and some boatyards across the UK inland waterways network.

This guide explains what an Elsan point is, what to take with you, how to empty a cassette properly, and how to leave the facility clean for the next boater.

What Is an Elsan Point?

An Elsan point is a purpose-built toilet waste disposal point for portable toilet cassettes. On waterways, it may also be called a chemical toilet disposal point, sewage disposal point, sanitary station or CDP.

The word Elsan comes from a well-known toilet chemical brand, but boaters often use it as a general term for cassette toilet emptying facilities.

An Elsan point usually includes:

• A drain or hopper for emptying toilet waste
• A rinse tap or hose for cleaning the cassette and the disposal area
• Sometimes a separate drinking water tap nearby
• Often a bin, handwashing facilities or general service area

The key point is that an Elsan is designed for toilet waste only. It is not a place for rubbish, engine oil, bilge water, food waste or general grey water.

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

Not all narrowboat toilets work in the same way. Before using any disposal facility, it helps to know which type you have.

A cassette toilet has a removable waste tank, usually accessed through a hatch inside or outside the boat. When the cassette is full, you carry or wheel it to an Elsan point and empty it yourself.

A pump-out toilet has a larger holding tank built into the boat. It is emptied using a pump-out machine at a marina, boatyard or waterside service station. You do not empty a pump-out tank into an Elsan point.

If you are hiring a narrowboat, the handover team should explain which system is fitted. If you are buying a boat, make sure you understand how the toilet system works before setting off on a long cruise.

What to Take With You

Being prepared makes the job quicker, cleaner and far less stressful. Before you leave the boat, check that you have everything you need.

• The toilet cassette, with the cap securely fitted
• Disposable gloves or washable rubber gloves
• Toilet chemical, if you use it in your cassette system
• Toilet paper suitable for cassette toilets, if you need to restock
• Hand sanitiser, especially if the facility has no handwashing area
• A small bottle of water, only for drinking while out and about, not for rinsing the cassette
• A torch, if you may be using the service point in poor light

Most cassette toilets have a sliding handle and wheels, which makes transporting them easier. If yours does not, carry it carefully and keep it upright. A full cassette can be heavy, so do not leave the job until it is completely full if you struggle with lifting.

How to Use an Elsan Point Step by Step

Although facilities vary, the basic process is much the same. Take your time the first few times and do not rush. A careful empty is far better than a messy one.

1. Check the Facility Before You Start

When you arrive, look for signs and instructions. Some Elsan points have a lid to lift, a flushing mechanism, or a specific hose for rinsing. Others are more basic.

Make sure you are using the correct point. Do not empty toilet waste into a standard drain, surface water drain, sink, shower, canal, hedgerow or rubbish bin. If the Elsan is blocked, overflowing or out of use, do not use it. Report it to the navigation authority, marina or site operator if possible.

2. Put On Gloves and Position the Cassette

Put your gloves on before handling the cassette cap, spout or Elsan lid. Position the cassette close to the disposal opening, but make sure you have enough space to control the pour.

Most cassettes have a rotating spout. Turn the spout outwards, keeping it over the disposal point where possible. Remove the cap carefully and keep hold of it. Do not place it somewhere it could fall into the drain.

3. Press the Air Release Button

Many toilet cassettes have an air release button. This helps the waste flow smoothly and reduces splashing or glugging.

On many models, you should only press the button once the spout is pointing down into the disposal point. If you press it too early, liquid can escape unexpectedly. If you are unsure, check the toilet manufacturer’s instructions.

4. Empty the Cassette Slowly

Tilt the cassette steadily and pour the contents into the Elsan point. Keep the spout low and close to the opening to reduce splashes.

Do not shake the cassette violently. A gentle tilt and controlled pour are usually enough. If the flow stops and starts, adjust the angle slightly and use the air release button if appropriate.

Take extra care in windy weather, at awkwardly designed points, or when the cassette is very full. There is no prize for doing it quickly.

5. Rinse the Cassette

Once the cassette is empty, use the designated rinse tap or hose to add a small amount of water to the cassette. Replace the cap, gently swirl the water around, then empty it again into the Elsan point.

You may want to repeat this once or twice. Avoid overfilling the cassette with rinse water, as it only makes the job heavier and may create more splashing.

Important: use only the tap or hose provided for toilet cassette rinsing. Do not use a drinking water tap to rinse a toilet cassette or cassette cap. If there is no rinse hose, do not improvise with a drinking water point.

6. Add Toilet Chemical and Water

After rinsing, add the correct amount of toilet chemical if you use one. Follow the instructions on the bottle, as amounts vary by product and cassette size.

Many boaters add a small amount of water to the cassette along with the chemical. This helps activate the product and prevents the bottom of the cassette from drying out.

There are different types of toilet chemicals, including blue, green and biological products. Some disposal points may have rules about what can be used, particularly where waste goes to sensitive treatment systems. If in doubt, check local guidance.

7. Clean the Area

Before leaving, rinse the disposal point and surrounding area if needed. Replace lids, hang hoses neatly, and make sure the tap is fully turned off.

If you have spilled anything, clean it properly. Leaving a dirty Elsan point is one of the quickest ways to annoy other boaters, and it can make the facility unpleasant or unsafe.

8. Wash or Sanitise Your Hands

Remove gloves carefully and wash your hands if there is a suitable handwashing facility. If not, use hand sanitiser and wash properly when you return to the boat.

Store reusable gloves separately from clean items. Many boaters keep a small sanitation kit in a dedicated locker or tub so everything is easy to find and kept away from food, water hoses and bedding.

Elsan Point Etiquette

Good Elsan etiquette is mostly common sense. Everyone needs to use these facilities, so a few considerate habits make life better for all.

• Queue patiently if another boater is already using the point.
• Do not rush someone who is emptying a cassette carefully.
• Leave the area clean, even if it was not perfect when you arrived.
• Report blockages rather than adding to the problem.
• Do not use drinking water hoses for cassette rinsing.
• Keep pets and children away from the disposal area while in use.
• Close lids and doors when you have finished.

If you are cruising in a busy area during summer, plan ahead. Service points can get busy, especially near popular moorings, locks and hire boat bases.

What Not to Put Down an Elsan Point

An Elsan point is only designed for human waste, toilet flush water, toilet paper and suitable toilet chemicals. Putting the wrong things down it can cause blockages, damage equipment and create unpleasant conditions.

Do not put the following into an Elsan point:

• Wet wipes, even those labelled flushable
• Nappies or sanitary products
• Kitchen roll or paper towels
• Food waste or cooking fat
• Engine oil, fuel, paint or solvents
• Bilge water
• General rubbish
• Cat litter or dog waste bags

If your cassette is blocked with wipes or other unsuitable items, deal with it carefully and responsibly. Do not force the blockage into the Elsan if it is likely to create a problem for everyone else.

How Often Should You Empty a Cassette?

How often you need to empty a cassette depends on the cassette size, number of people on board and how much the toilet is used. Liveaboards, families and long-distance cruisers may need to empty frequently, while a solo boater on short trips may go longer.

A good habit is to empty before the cassette is completely full. This keeps the weight manageable and reduces the risk of leaks or emergency dashes to the nearest service point.

If your toilet has a level indicator, use it as a guide rather than an absolute guarantee. Indicators can sometimes stick or give misleading readings. If you are heading into a rural stretch with few facilities, empty at the last available point and carry a spare cassette if possible.

Finding Elsan Points on the Canal Network

Elsan points are usually shown in canal guides, navigation apps, marina listings and waterway authority information. They are often located with other services such as water points, rubbish disposal and pump-out machines.

When planning a route, look ahead for:

• The next available Elsan or sanitary station
• Opening hours if the facility is inside a marina or boatyard
• Whether access requires a key, code or payment
• Nearby mooring availability
• Alternative facilities in case one is out of order

Do not assume every water point has an Elsan point. They are separate services, and some locations offer one without the other.

Common Problems and How to Avoid Them

The Elsan Point Is Blocked

If the point is blocked, do not empty into it. Adding more waste will only make the problem worse. Use another facility and report the blockage to the relevant authority or site owner.

The Cassette Smells Bad

Strong odours can be caused by heat, infrequent emptying, too little water, incorrect chemical dosage, or a dirty cassette seal. Empty more often in warm weather and clean the cassette according to the manufacturer’s guidance.

The Cassette Is Too Heavy

Empty sooner next time. If you struggle to move a full cassette, consider a spare cassette so you can rotate them before either becomes too heavy. Check that wheels and handles are working properly.

There Is No Rinse Hose

Some basic disposal points may not have a hose. Empty as cleanly as possible and do not use a drinking water tap or hose to rinse the cassette. You can give the cassette a more thorough clean later at a suitable facility.

Keeping Your Cassette Toilet in Good Condition

Using an Elsan point properly is only part of good toilet care. A well-maintained cassette is easier to empty, less likely to smell and more pleasant to live with.

• Use toilet paper that breaks down easily.
• Keep seals clean and lightly lubricated with a suitable product.
• Do not overfill the cassette.
• Rinse after emptying where facilities allow.
• Deep clean the cassette periodically using an appropriate cassette cleaner.
• Store spare cassettes securely and upright.

Avoid using harsh household cleaners unless the toilet manufacturer says they are suitable. Some chemicals can damage seals or affect how toilet additives work.

Hygiene and Safety Tips

Emptying a toilet cassette is straightforward, but it is still a sanitation job. Treat it with care.

• Keep your face away from the spout while emptying.
• Avoid splashing by pouring slowly.
• Wear gloves and wash your hands afterwards.
• Keep toilet equipment separate from drinking water equipment.
• Do not let rinse hoses touch the cassette opening if you can avoid it.
• Clean footwear if you step in a contaminated area.

It is also sensible to keep your boat’s drinking water hose, connectors and filler cap well away from toilet waste equipment. Cross-contamination is easily avoided with clear separation and good habits.

Using an Elsan Point in Winter

Cold weather can make service points harder to use. Taps may be turned off to prevent freezing, paths can be slippery, and cassette contents may be more awkward to empty if left too long in very low temperatures.

In winter, plan your stops carefully and do not rely on a single facility being available. Wear footwear with good grip and take a torch if daylight is limited. If a tap is frozen, do not force it, as this may damage the fitting.

Frequently Asked Questions

Can I empty a cassette toilet into a normal toilet?

Only if the toilet is specifically intended or approved for that use. On the canal network, you should normally use a proper Elsan or chemical toilet disposal point. Never empty a cassette into a public toilet without permission, as it can cause mess, odour and plumbing problems.

Can I use an Elsan point for grey water?

No. Grey water from sinks and showers is different from toilet waste and should not be poured into an Elsan point unless a site specifically says it is allowed. Follow local waterway and marina guidance.

Do I have to use toilet chemicals in a cassette?

Many boaters use cassette toilet chemicals to reduce odour and help break down waste, but products and preferences vary. Always follow your toilet manufacturer’s advice and any rules at the disposal facility.

What should I do if there is no Elsan point nearby?

Plan your route to avoid this situation where possible. If you are cruising in areas with fewer services, empty whenever you can and consider carrying a spare cassette. Never dispose of toilet waste in the canal, on land or in ordinary drains.

Is it safe to rinse my cassette at a drinking water tap?

No. Drinking water taps and hoses must be kept separate from toilet waste equipment. Use only the designated rinse hose or tap at the Elsan point. If none is available, wait until you reach a suitable facility.

A Simple Job That Matters

Once you know how to use an Elsan point, emptying a cassette becomes a routine part of boating. The main things to remember are simple: use the correct facility, pour carefully, rinse only where appropriate, add the right chemical if needed, and leave everything clean.

Good habits protect your health, help keep service points working, and show consideration for fellow boaters. It may never be your favourite boating task, but done properly, it is quick, clean and trouble-free.