When using carpet protector...No Soileze.

[Act One Cleaning]

Just to be clear, Bernd, a "case" to us is four US gallons, or 15.2 litres to you. We get four plastic one-gallon jugs in one box.

I do fully sympathise with the need to watch costs, all of us do. Perhaps there is a local treatment that you could use after the encap has dried?