Even on a material as high-end as BamDeck, you may come across a stain that is particularly stubborn. First, try other cleaning methods and then wait a couple months because sun exposure usually helps stains disappear. If after this time the stain is still there, you may try sanding or pressure washing.
Remember that these should be last resort options. If done too harshly, sanding can affect your bamboo deck’s original texture and is generally not a great idea. However, for very stubborn stains you may try lightly sanding the area with paper that has a very fine grit.
Same thing with pressure washing. In general, we do not recommend it because if done incorrectly it can cause damage to composite decks. However, skilled professionals using washers with low pressures (under 15-hundred PSI) and wide fan tip nozzles spraying at least 12 inches above the deck surface may do the trick.
Again, these are last resort cleaning options and should only be attempted if regular clean-up solutions have not worked.