I expected more from B&G there is no way to control the air mixture so foam is very inconsistent. It spits and sputters instead of making a thick foam. Only good for the smallest of jobs. I would not recommend this unit. I will end up converting it into a standard sprayer.
I find that this foamer puts way too much air in the mixture resulting in much sputtering, and inconsistent, weak foaming action. The excessive air use also results in the tank depressurizing so rapidly that I find myself pumping more than spraying. I would not recommend this product.