The Thetford S220CS Separation Toilet offers a waterless alternative to traditional cassette toilets for caravans and motorhomes. It works by separating liquid and solid waste at the source, allowing you to manage waste disposal without relying on fixed service points. The S220CS is built as a complete toilet unit based on the familiar C220 cassette toilet design, with a 7.5-litre urine tank and 7-litre solid waste bucket, both made from recycled plastic. Weighing 7.2kg with a seat height of 492mm, it's designed as a direct replacement for existing C220 models.
Why choose a separation toilet over a cassette toilet for off-grid camping?
Separation toilets eliminate the need for water and chemicals, letting you stay off-grid for longer periods. The urine tank empties into standard toilets while solid waste goes in bags for household disposal (where local regulations permit). This means fewer trips to dedicated waste disposal stations and greater freedom when choosing where to park. The waterless operation also reduces your fresh water consumption and running costs.
The S220CS features a blade mechanism that visually covers waste, keeping the bowl clean and hygienic between uses. The ergonomically optimised bowl works for both men and women, with a leak-free connection between the toilet and urine tank to prevent spills during transport. A mechanical level indicator on the urine tank tells you when it needs emptying. You'll find installation straightforward with the complete bowl design, and there's an optional ventilator kit (A0032629) available for enhanced odour control. The unit measures 534 x 394 x 580mm and fits through Door 3 access panels.
Thetford Separation Toilet S220CS Features
Waterless Operation - Works without any water or chemicals by separating liquid and solid waste at the source, allowing extended off-grid camping
Direct C220 Replacement - Complete toilet unit modelled on the C220 cassette toilet design, fitting the same footprint (534 x 394 x 580mm) with Door 3 access
Dual Tank System - Features a 7.5-litre urine tank with mechanical level indicator and a 7-litre solid waste bucket, both made from recycled plastic
Blade Covering Mechanism - Built-in blade visually covers solid waste to maintain hygiene and keep the bowl clean between uses
Ergonomically Optimised Bowl - Specially designed bowl shape works for both men and women with leak-free connection to prevent spills during transport
Flexible Waste Disposal - Urine empties into any standard toilet while solid waste goes in bags for household disposal, eliminating dependency on fixed dump stations
Specifications
Model: S220CS
Item No: 212453SP
Bowl: Plastic
Tank & Bucket: Recycled plastic
Seat height: 492mm
Solid waste bucket volume: 7L
Urine tank volume: 7.5L
Urine tank level indication: Mechanical
Access door: Door 3 (optional)
Weight: 7.2Kg
Dimensions (mm): 534 x 394 x 580
Frequently Asked Questions
How does the Thetford S220CS separate liquid and solid waste?
The S220CS uses an ergonomically optimised bowl design that directs urine to the front collection area leading to the 7.5-litre urine tank, while solid waste falls into the rear 7-litre bucket. A blade mechanism covers the solid waste compartment to keep it out of sight and maintain separation during use. This waterless system operates without flush mechanisms, relying on gravity and bowl geometry to keep waste streams completely separate.
Where can I empty the waste from a Thetford separation toilet?
The urine tank empties into any standard toilet, public restroom, or drain. Solid waste collected in biodegradable bags disposes with household residual waste where local regulations allow. This flexibility means you're not dependent on dedicated chemical disposal points found at campsites. Always check local disposal regulations before travelling, as rules vary between countries and regions regarding solid waste disposal methods.
Will the Thetford S220CS fit my existing C220 cassette toilet space?
Yes, the S220CS is designed as a direct 1-to-1 replacement for Thetford C220 cassette toilets. It uses the same footprint at 534 x 394 x 580mm and Door 3 access panel configuration. The seat height remains 492mm, matching standard C220 installations. The main difference is the dual-container system replacing the single cassette, with both tanks fitting in the same external access space as the original cassette toilet.
Do I need chemicals or additives for the Thetford S220CS?
No chemicals are required for basic operation. Thetford offers optional consumables including Separation Toilet Urine Tank Fresh to prevent odours and scale buildup, Separation Toilet Drying Agent made from 100% biodegradable wood fibre to absorb moisture in the solid waste bucket, and dedicated bowl cleaner. These products enhance the experience but aren't necessary, unlike cassette toilets that require sanitation chemicals to function properly.
How often do the tanks need emptying on the S220CS?
Emptying frequency depends on usage, but separation toilets typically offer longer intervals than cassette toilets. The 7.5-litre urine tank has a mechanical level indicator showing when it's full. For two people, expect to empty the urine tank every 2-3 days with regular use. The solid waste bucket lasts longer, often 4-7 days depending on occupancy. The separate collection means you empty each container only when needed, rather than disposing of mixed waste.
What's included with the Thetford S220CS complete toilet?
The S220CS comes as a complete toilet system including the ergonomically optimised bowl (both inner and outer components), 7.5-litre urine tank with mechanical level indicator, 7-litre solid waste bucket, leak-free connection hose and fittings between toilet and urine tank, and the blade mechanism for covering waste. The bowl is made from plastic while both tanks use recycled plastic construction. The ventilator kit (A0032629) and Door 3 access panel are sold separately as optional accessories.
If you’ve changed your mind about keeping your purchase, please return it in its original condition with proof of purchase and we’ll exchange or refund it. Unless faulty, this should be within 100 days of receiving your order. By original condition, we’d expect this to mean that you’ve kept packaging and labels, and that the item is undamaged and unused.
For further information of how to return your item, please visit the "Returning an Unwanted/Faulty/Damaged Item" section on our Help Page.
Did you know we have been established and have been in the caravan and motorhome industry for over 50 years?
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