You may not know this, but I received a bachelor of science degree in geology many moons ago. I was fascinated by the topic, and it helped me build houses and buildings that would not fail. Hydrogeology, the study of groundwater, and continental glaciation were two subjects that have allowed me to solve wet basement problems for thousands of homeowners like you.
One of the things I discovered in my college years is that normal sand you find anywhere is nothing more than very tiny pieces of rock. Some sand is quite pure, like that you might find on Siesta Key in western Florida. Many call it sugar sand.
