moss on a carpet covered deck (factory pool deck)

[medvampire]

There are a few ways of killing the moss off. Remember moss is harder to kill than algae due to it is a multicelluar plant. I have seen bakeing soda, zink, and copper used as well as some herbacides but I would caution you about those. Here is some good links.
http://bryophytes.science.oregonstate.edu/page24.htm
http://turfgrassmanagement.psu.edu/c...ontrolmoss.cfm
Steve

[ChuckD]

FWIW, we have a pretty shady yard that makes a proper lawn a real challenge. Between that and the acidity the oaks' leaves add, moss seems pretty happy there. A neighbor with a passion (and the results) for landscaping thinks distributing agricultural lime, or calcium carbonate, is the best way to subdue the moss. Seems it likes the acid and the lime takes that away (raises the pH).

Chuck