Plus one. For stubborn algae like green spot, I just use more pressure and repetition.Steve C said:I use a hand algae scrubber. It's an abrasive pad on about a 15" handle you can get at most LFS for around $10. Usually works really well on 90% of the dirty/algae spots.
2x ... :thumb:BlueSunshine said:I use a kent marine proscraper II. The shorty is the one I like, they work great.