There is a
lot of false information out there concerning the cleaing of
tombstones. I have even seen some people posting links to their money
making schemes of how to get rich by cleaning tombstones. One must be
very careful when dealing with these old monuments. The most important
thing to remember is that by improperly cleaning any tombstone, you can
cause irreparable damage to the stone. Tombstones
are made of various materials, and what is ok for some stones is not
recommended for others. A lot of knowledge is required in order to
properly clean tombstones, and therefore cleaning
tombstones is best left to the professionals.
Never clean any tombstone of anyone to whom you are not the
next of kin. If you attempt to clean a tombstone and damage it by doing
so, it is tantamount to vandalism. Never use a pressure washer. A
pressure washer is too high powered and can easily damage many stones.
Never use bleach or harmful chemicals including shaving cream. Never
use metal gadgets to scrap stones, not even your keys or a nail file.
Amateurs are only recommended to clean a stone by using water and a
small soft bristled brush, such as a toothbrush. Do not use a brush
with dyed bristles, because this can stain a stone. Only use minimal
amounts of pressure when trying to clean a stone. It's better to take
your time and go slowly rather than risk damaging the stone by rushing
and doing something wrong.