Cassette toilets are often used in situations where there is no access to sewer lines. So what are the best cassette toilet chemicals to use? Read on..
Introduction
Cassette toilets are eco-friendly chemical toilets that use a detachable waste tank, or cassette, that can be easily removed to empty waste.
Cassette toilets are often used in situations where there is no access to sewer lines, such as in RVs, boats, and off-grid homes. When properly maintained, a cassette toilet can offer a hygienic and odor-free way to deal with human waste.
However, many people don’t know that there are chemicals used in these portable toilets and are unaware of the procedure for using them. In this blog post, we’ll explore the best chemicals used in cassette toilets, and how you can safely use them. We’ll also provide some tips that will make your life easy while you enjoy your van life.
Do you have to use chemicals in a cassette toilet?
Yes, it is essential to use chemicals in a cassette toilet as they help to break down the solid waste and prevent the formation of nasty odors.
The waste tank in a cassette toilet is typically made of plastic, and the cleaning products’ chemicals can help prevent the build-up of bacteria and odors. In addition, the chemicals in cleaning products can also help to break down waste material, making it easier to empty the tank.
While it is possible to clean a cassette toilet without using any chemical solution, doing so may result in undesirable odors and an increased risk of bacterial growth. As a result, using chemicals in a cassette toilet is essential for maintaining both the cleanliness of the unit and its long-term durability.
Therefore, if you want your Cassette toilet to keep smelling fresh, it is recommended to use the toilet chemical only.

Can you put bleach in a cassette toilet?
It is not always recommended to put bleach in a cassette toilet as it can damage the holding tank. In addition, bleach is a harsh chemical that can produce toxic fumes, and it is not always necessary to use such a potent cleaning agent.
Instead of using bleach, you can use portable toilet chemicals designed specifically for cleaning cassette toilets. These products are typically less harsh and won’t damage the holding tank. Using the amount suggested on the bottle will maintain a clean and fresh-smelling environment without using bleach.
Use the chemicals only as needed to get your desired result since using them more will not necessarily do a better job but will cost you more money.
How often should you empty a cassette toilet?
A typical cassette chemical toilet is 15-20 ltr in size; most cassette toilet brands offer a level indicator on the model.
It also depends upon the usage, but on average, you should empty it every 3-4 days. If you are using it more frequently, you may need to empty it more often.
In summers, it is always better to empty your cassette toilet once in 2-3 days, this can range a little longer, but again, it is essential to ensure the waste in the toilet does not freeze.
“You should always find a proper RV dump point. All caravan parks should have one but some don’t. If in doubt, ask the park manager. Most dump points are pretty obvious, being the familiar grey tub with a blue lid. Some definitely are not so obvious.”
RVDAILY.com.au
How do I stop my cassette toilet from smelling?
There could be different reasons for the foul smell coming from your cassette toilet. However, before we look into the solutions for stopping the cassette toilet from smelling, let’s look at the problem areas.
Your cassette toilet might be smelling bad due to one of these reasons:
● Clog/ blockage
● Leaks
● Faulty seats
● Methane Gas in hot weather

Here are some easy ways to reduce the smell coming from your cassette toilet:
Always use a suitable product.
It is always recommended to use a good quality product. Many products in the market can help to make your cassette toilet smell fresh.
Choose the one that can prevent the formation of methane gas.
Methane gas is the main culprit that makes your toilet smell bad.
Dump and Clean Regularly
We all know it is not an enjoyable part of an RV life. But it is crucial to keep your cassette toilet clean if you want it to smell good.
You should regularly check the hoses, seals, and O-rings for any cracks or leaks. Also, don’t forget to clean the toilet bowl, holding tank, and sensors.
Don’t Let It Get Too Full.
As mentioned in the last tip, dumping and cleaning regularly can help the job get done. Doing it regularly will not allow your toilet to get full, but be sure to plan it.
Try to utilize dumping facilities at any dump stations as much as possible because you don’t want to be in a location where there are no dumping stations for miles around.
Don’t Mix Liquids & Solids.
Using a cassette toilet is different from using a regular home toilet; mixing the liquids and solids can make it very difficult to clean and also creates a bad smell.
There are different ways to prevent this from happening; you can use a second holding tank for liquids or a composting toilet.
If you are using a second holding tank, make sure to empty it regularly. For example, if you are using a composting toilet, make sure the sawdust or peat moss covers the solid waste.
Dispose of Your Toilet Paper In The Bin
It is recommended to dispose of your toilet paper in the bin provided to avoid clogging. Many people flush the toilet paper down the toilet, which can cause a blockage.

How do you clean a cassette toilet?
To clean your cassette toilet, you will need a stiff-bristled brush and clean water. These are the five steps you need to take to deep clean your cassette toilet:
Step 1
Insert the brush in the toilet bowl and brush around the rim.
Step 2
Next, brush the internal walls of the toilet bowl.
Step 3
Then move on to cleaning the hoses and seals. Once you have cleaned all the parts, flush the toilet with fresh water and let it run for a few minutes. Rinse all surfaces thoroughly until there is no more residue.
Step 4
Finally, leave the toilet lid open to air out the cassette toilet.
Step 5
Before putting your cassette back in the RV, ensure it’s cleaned twice. Keep these suggestions in mind so that your cassette lasts a long time.
What are the best cassette toilet chemicals to use?
As you already know how to clean your cassette toilet, it is time to talk about the best chemicals for any cassette toilet.
There are different products available in the market, but not all of them are good for your RV. It would help if you always looked for a biodegradable product that won’t harm your septic tank.
There are a lot of different portable toilet chemicals available. To make things simple, the most excellent portable toilet chemicals to utilize are those that work effectively, are environmentally friendly if feasible, and don’t void your warranty.
Before making a choice, consider these two main things:
1. Is it capable of removing any unpleasant odors?
2. Is it environmentally friendly, including both the environment and your health?
We recommend these three chemicals for your cassette toilet:
Pro-Kleen Caravan Toilet Chemical Blue 2L + Pink 2L
- Antimicrobial & anti-infection chemicals eliminate germs and disease.
- Removes unpleasant smells from the environment.
- Exceed the British Standard BS. 2893:1989
- Non-staining – suitable for all chemical toilets and cassettes.
- Blue chemicals are formaldehyde free.
This chemical does a perfect job; it is thick and takes time to dilute.
“Formaldehyde irritates human airways and is believed to cause cancer of the throat. Exposure is a special concern for children, who can become easily sensitized and the elderly who are likely to be less able to tolerate high levels of contact.”
Surco.com
Aqua Rinse Plus
- Fluid for toilets that is both powerful and suitable for motorhomes, campers, caravans, and boats.
- It dissolves waste and leaves your toilet smelling fresh in minutes.
- The water in this unscented liquid is non-staining and ideal for use in waste tanks of any portable toilet system.
- The concentration of Liqui-Bloo is so great that it may be diluted up to 1 in 50 parts water, making it a cost-effective option for your toilet.
Aqua Kem Green
- It dissolves waste, naturally eliminates odors, and has a lovely mild smell.
- It eliminates waste and smells natural without using harsh chemicals.
- It may be used in both flush and waste tanks.
- It’s biodegradable and eco-friendly.
- It promotes the natural decomposition of waste.
Final Words
In conclusion, chemicals for cassette toilets are an essential part of keeping your toilet clean and sanitary. By selecting the right product and using it correctly, you can help to prevent odors and stains.
In addition, proper maintenance will extend the life of your cassette toilet and minimize the need for repairs. With a bit of care and attention, your cassette toilet can provide years of reliable service.
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