Camper van toilet: chemical, composting or cassette?

There are three common types of toilets for camper vans: **Chemical toilet (portable, e.g. Porta Potti)** A compact, portable unit with a flush water tank on top and a waste tank below. Uses chemical fluid to suppress odour and break down waste. Price: €60-€150. Weight: 3-5 kg empty. **Cassette toilet (permanently installed)** A fixed-mount toilet with a removable cassette (waste tank) that you access via an external hatch. Same principle as chemical, but more comfortable due to fixed seat height. Price: €200-€500. Weight: 5-10 kg. **Composting toilet (separation toilet)** Separates urine and solids. Solids are covered with wood shavings or coconut fibre and dry out (compost). No chemicals needed. Price: €150-€800 (e.g. Trobolo, Trelino, Nature's Head). Weight: 5-15 kg.

**Chemical / cassette:** ✓ Familiar system, simple to use ✓ Cheap to buy (portable) ✓ Flush water keeps it clean ✗ Chemicals needed (€5-€10 per refill) ✗ Emptying only at special dump points (not in a regular toilet) ✗ Odour can be a problem in warm weather ✗ Regular emptying needed (every 3-5 days for 2 people) **Composting toilet:** ✓ No chemicals needed ✓ Urine can be disposed of in a regular toilet or in nature ✓ Solids can go with household waste or be composted ✓ Less frequent emptying (solids every 2-4 weeks) ✓ No water needed = lighter and simpler ✗ More expensive to buy ✗ Fan needed for odour control (small, 0.1-0.3A) ✗ Getting used to the separation principle ✗ Wood shavings/coconut fibre need refilling

**Space:** a portable chemical toilet fits in a cabinet of 40×40×45 cm. A fixed cassette or composting toilet requires a dedicated bathroom space or a creative solution (under the bed, behind a curtain). **Water usage:** a chemical/cassette toilet uses 0.5-1 litre of flush water per use. At 4 times per day for 2 people, that's 4-8 litres per day — a significant drain on your water supply. Composting toilets use no water. **Vehicle inspection:** a toilet is not required for camper van registration (SA classification). You don't need one to pass inspection. **Waste water:** if you have a cassette toilet, the flush water (grey water) must be collected separately. This means an additional tank that takes up space and weight. **Odour:** for composting toilets, a small fan (12V, 0.1-0.3A) is essential that continuously blows air over the composting chamber and vents it outside via a hose. Without the fan, it can smell.

Choose based on your travel pattern: **Weekend use or occasional off-grid:** a portable chemical toilet (Porta Potti) is the simplest and cheapest solution. Store it in a cabinet when not in use. **Long-term travel, lots of off-grid:** a composting toilet is the best choice. No water needed, less frequent emptying, no chemicals. The higher purchase price pays for itself through lower running costs. **Maximum comfort:** a fixed cassette toilet with a dedicated bathroom space. Closest to a home toilet, but takes the most space and weight. **No toilet at all:** many camper van builders choose not to install a toilet and use public facilities, nature (with a trowel) or an emergency bucket. This saves space, weight and money, but isn't ideal at night or in bad weather. Tip: start with a cheap portable chemical toilet (€60-€80) to test whether you really need a toilet in the camper, before investing in a more expensive fixed system.