
Most damage we repair on the road wasn't caused by weather — it was caused by a family member who wanted to help. The intent is loving; the materials are wrong.
Pressure washers
Even at low PSI, pressurised water drives mineral deposits deeper into porous stone. Within two seasons the headstone looks worse than before and grain has begun to flake off the corners.
Bleach and household cleaners
Chlorine bleach reacts with the iron in granite and the calcium in marble, leaving rust streaks or chalky white patches that can never be reversed.
The right approach
Plain water, a soft natural-bristle brush, and D/2 Biological Solution is the only safe regimen for unsupervised DIY work.



