The measure of liquid conveyed per square meter will change impressively relying upon the rate at which froth is being made and the consistency of the froth. Fine light froths required less liquid to counter them where as thick froths require more.
Overall the lightest froths will need around 4 liters of spray for each square meter each moment for compelling froth control and this ascent to around 160 liters each moment for every square meter for extremely forceful froth framing circumstances. It ought to be noticed that the maximum furthest reaches of this reach would be for a particularly quick shaping froth.