To make sure you can rely on your chemical toilet as long as possible, it is important to use special toilet additives for both the upper and the lower tank (waste tank and flush-water tank). B-Fresh Pink improves your toilet's hygeine. It keeps your flush water fresh, takes care of a smooth flush, prevents limescale deposits and lubricates the toilet seals.
Directions for use: Add 100 ml of B-Fresh Pink to every 15 litres of flush water.
This does not contain formaldehyde so it's safe to use. It also does not harm seals or moving parts, as it is specially developed for use in chemical toilets, like the Porta Potti.