How to Use D/2 Biological Solution to Clean a Gravestone
This video shows step-by-step how to use D/2 Biological Solution to clean a historic gravestone or monument. Sometimes lichen & algae on a historic monument can be aesthetically pleasing, so the first question is why even clean the monument? The simple answer is that the mold, mildew, algae, & lichens are feeding on the stone […]
