BennyLava -
If you read the Manual I left in the link on post # 6, it shows a picture of the machine and a bottle of Defoamer pouring into the Recovery Tank..
Believe I posted that I put some in the Recovery Tank and add a little water to get it mixed up, since it`s a powder..
I suppose you can also add some to the Clean Water Tank and that will help cut down foaming too, but I have never needed to do that since I use a Low Foaming APC...
Dan F
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