A concentrated biodegradable blend of detergents, natural micro-organisms and enzymes that quickly digests and liquefies solid waste and prevents odours.

Formulated specially for all portable toilets and commodes, replacing formaldehyde based products.

Biodegradable Royal Flush is compatible with all types of drainage systems, including septic tanks.

Only activated by dilution with water, cannot be overused nor cause damage to the drainage system.



• 1L Double Chamber
• 5L Container


When not is use keep closed in the original container. Keep out of reach of children.

Features & Benefits

  • Biodegradable and non-harmful
  • Prevents odours
  • Highly effective in all chemical toilets
  • RV cassettes, Porta-loos, long drops, marine and bus toilets
  • Pleasant fragrance

Product Comparison

What you might not know about comparisons?

pDCB is a crystallised gas and only offers masking smell and some insect repellent properties. pDCB provides no cleaning efficacy at all. Some people are under the impression because pDCB blocks get smaller in the urinal that they dissolve in water. This is not so. pDCB returns to its gaseous state while ‘dissolving’ into the air when immersed in water it remains static.

Unfortunately and because of this, when pDCB blocks get small enough to drop through urinal grating they lodge in the trap and cause blockages. The various pDCB alternatives are usually made from surfactants so they provide some cleaning efficacy. These blocks are also water soluble, so they totally dissolve and cannot contribute to blocked pipes.

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Sanitaire Bio Clear 10X