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Sanitation Products/Chemical Additives

To ensure the efficient operation of portable chemical toilets, it is necessary to use toilet additives. Thetford offers a complete range of toilet additives to suit the varying needs of mobile toilets for camping, caravanning and domestic use.

What do Thetford toilet additives do?

Thetford waste holding tank additives reduce unpleasant odours and gas build-up. They break down waste matter in toilet holding tanks and prevent clogging, and also prevent deposits from sticking to the inside of waste tanks. Toilet additives are necessary to make mobile sanitation systems work trouble free. Our flush water tank additives keep the water ‘fresh’, ensure a smoother, better flush and leave a protective film in the toilet bowl.

What types of additives are available for chemical toilets?

There are additives for the waste holding tank, for the flush water tank and also for general maintenance. Your Porta Potti in general requires two main chemicals; the chemical for the bottom "waste" tank, in which either the Aquakem blue or green is suitable (and also essential!) and the chemical for the top "flushing" water tank, in which the Aqua Rinse Pink can be added. Aqua Rinse isn't an essential additive, however usage of it in a chemical toilet can help to maintain an overall more pleasant portable toilet experience.

thetford porta potti toilet chemicals

thetford aquakem blue

AquaKem Blue Waste Tank Additive

AquaKem Blue breaks down waste matter and controls odours in all portable toilets and Porta Potti’s. Aquakem Blue is not suitable for use with Septic Tanks.



thetford aquakem green

AquaKem Green Waste Tank Additive

Aquakem Green is both powerful and effective at neutralizing waste and is suitable for use with septic tanks too.



thetford aquarinse pink

AquaRinse Pink Water Tank Additive

AquaRinse Pink is use to keep the water in the flush tank fresh, it also leaves a protective film over the toilet bowl.



thetford tank freshener

Thetford Tank Freshner

Thetford Tank freshener fluid, reduces deposits and grease contamination in tank and pipework in cassette. For use in Thetford and other portable toilets.
Pleasantly pine scented
Safe for use with all plastics.




Thetford Triple Pack

The Thetford triple pack contains everything you need to get started using your toilet. It includes:

  • 1.5 Litres AquaKem Blue
  • 1.5 Litres AquaRinse Pink
  • 4 Pack of AquaSoft Toilet Rolls




thetford aquasoft toilet rolls

Aqua Soft Toilet Rolls

Aqua Soft toilet rolls specially formulated for chemical toilets, Aqua Soft toilet rolls dissolve easily and do not block tanks or waste valves. 4 Pack



How to apply the chemicals

Thetford porta potti rinse

Thetford porta potti waste

Thetford porta potti flush


Thetford porta potti flush diagram

Thetford porta potti removable

Thetford porta potti swivelling waste