I often provide complimentary cleaning for veteran headstones while on paid jobs, as a sign of respect. I always document this work for my $1 million liability insurance policy. Here is a before-and-after example using the cleaner I recommend. The husband and wife headstones were sprayed, gently brushed, and resprayed. On my recent visit, I saw how effective the product is at removing biological stains from the stone. If you have a headstone you want to restore, contact me. I also offer a new process for older stones, especially if rain is expected soon. If you want to learn proper techniques, join my Headstone Dignity Skool or call (951) 404-2487. https://www.skool.com/headstone-dignity-9628/about?ref=5bd58c8f466b426f84428aba29af0c42 https://tinyurl.com/8ks4tsy6 https://tinyurl.com/bddhx3f5