The Algoclear Cleaning Process aims at using just enough biocide to kill the biofilm factored by site conditions.
The amount of ACP biocide will vary with the amount of live organisms to kill. It is therefore sensible to remove moss and loose material before application. A fan jet will foam the mix on impact and give a good visual reference for an even application.
The amount of active ingredient in dry form per m² is the real measure of treatment potency. The dosage can be applied with a weak mix, applied liberally, or a strong one, applied thinly. When the water evaporates the surface concentration will increase in the same proportion.