Probably the most reasonably priced Defoam on the market, but very effective as high concentrated. Use just a few drops normally.
The specific dosage of De-foam depends upon the foaming intensity and type of system being treated. Start in most systems at 25ppm either slug or continuous and adjust dosage as on effectiveness. Applications as low as 5ppm and as high as 200ppm have been highly successful in controlling foam. De-foam can be fed directly into the system or diluted in proportion with water, agitated and proportionately fed by any type of pump.
Available in 1 litre or 5 litre.