Crystal Defoamer-8lbs.

Detergent residues left in carpets can foam up causing costly delays. Chemspec Crystal Defoamer prevents foam from developing on carpet and stops foam build up in your hose and recovery tank. Crystal Defoamer never cakes or clumps up.

It dissolves easily in water for complete extraction. Plus, it's odorless and won't spot the carpet.
By using Crystal Defoamer, you'll save time and labor. A single application does the trick. There’s no time wasted applying more defoamer, removing the hose from the wand, or cleaning up after a leaky spray bottle.

With its high concentration, a few tablespoons of Crystal Defoamer per 100 square feet of carpet is all you need to stop foam and keep it away. Option: Sprinkle on carpet or put in tank.