Use 1 capful (5mL) for each 200L of new water. For smaller volumes, note each cap thread which is roughly 1mL. Prime may be added to the tank directly but it is better all round if added to new water first. If added straight into the tank, dose on water volume. Please note a smell of sulphur is quite normal. For very high chloramine concentrations, a double dose may be used safely. To detoxify nitrite in an emergency, you may use up to 5 times normal dose. If the temperature is 30°C (86°F) and chlorine or ammonia levels are low, use half a dose.
