I use algae and moss remover for several years. To date, the funds' Allex of Lithofin "(5 liters 50, - Euro). Since this is relatively expensive, I tried it with this agent. The effect is disappointing. It was made by me in a mixing ratio of 1: 4 is applied on clinker bricks and roof tiles. Effect nil. Allex can take the knapsack sprayer in the ratio 1: Spray thin 6 and the next day the green lining is bright discolored and then rains with time. Also Moos is the next day brown and decays with time. Cheap in this case, is expensive.
