As I was getting ready for our first winter in new house I decided that I should do what I could to make sure i had my crawl space ready. Crawling around in the space I found a Hole in part of a old brick wall...so I grabbed a flash light and stuck my head inside only to find a well! I do not belive that it is the well currently in use because there is a pipe capped off in the full basement that comes from crawl space area. What are the issues having this in the crawl space, I am worried that it could be a source for rats, mice, to get water,,ect...and possibaly mold..How can i keep the moisture from attacking the house..This part of the house was built in approx 1860's and the newer side is around 1910.