A: You should be able to remove the algae rather easily with a bleach-type deck cleaner such as Olympic or Wolman. These cleaners are sold at all home centers and are easy to use. Usually, a garden-type sprayer (less than $20) is used to apply the bleach-cleaner. Some cleaners do not require any scrubbing — they are allowed to work for 10 minutes or so, then are rinsed off with water from a garden hose.

Read and follow the directions for the cleaner you choose. If there are plants around the deck, soak thoroughly with water before cleaning, and then rinse them afterward.


A: I have used this product for many years on many mechanisms, including garage door rollers and tracks, and have never had any problem with it getting gummy. I also know mechanics who use it regularly and recommend it. It isn't necessary to spray a thick coat of WD-40 — a little goes a long way. I would spray some on the rollers, in the tracks, and on other moving metal parts that might be causing the squeaks.


Quick tip: Reader Marian Ramos offers a hearty endorsement of Sikkens deck stain — a brand not sold at many home centers. She says Sikkens stain costs more than many others but added, ''I will never use anything else. I know of two deck contractors who will never use anything but Sikkens.'' http://www.nam.sikkens.com
