We sprayed it on, scrubbed with a brush, then used a light pressure washing spray to clean. Really pretty magic how well this works- and I tried LOTS of other products before this one. Had a few mildew stains (especially when people sit with sunscreen) and used starbrite mildew remover. After a few applications- it was GONE. Highly recommend.
Rating:
[5 of 5 Stars!]