Just had a look at hot tub defoamer and it says do not mix with cleaning products....Here is another question...I mix my floor cleaner with water then apply it onto the stone floor, rotary scrub, dwell for 10-15 mins then suck it up with wet vac...So do i put defoamer into water and cleaner or do i put 5 litre of water with defoamer into the wet vac before i start removing from the floor?