We've recently renovated this bathroom, and since our Spa Bath hasn't been used in quite some time we decided to give it a clean out. We used this liquid cleaner and followed the instructions precisely.
Our bath doesn't allow us to shut the air off completely however we do turn it to minimum, along with the pump intensity.
So I turned the bath on, went downstairs to make some food. I was gone for ~2-5 minutes however that was time enough, I came back up and before I entered the room I saw my room had been taken over by bubbles. They were cascading over the edge of the bath and were now stacking up on the floor! In this time they had already become knee deep, coming up to the same height of the toilet. They were not easy to neutralize, in the end we had to pick them up and move them away.
How can I prevent this massive amount of froth from occurring and is there any good method for neutralizing it fast when it does?