c Also suitable for cleaning waste pipe. One 250ml bottle makes 30 litres, enough to thoroughly clean a Wastemaster or similar container twice.

To use, mix half the bottle with 15 litres of warm water, pour into the wastemaster and agitate well. Lay the wastemaster on its back and leave to soak for 6 hours (or overnight for a more thorough cleanse), then turn over and leave for a further 6 hours to ensure complete cleaning coverage. Empty the container, half fill with fresh water, agitate well, and drain.