Water in your basement can be a major headache, but it is a very common problem, especially in homes that are low lying where the groundwater will seep up through cracks in the foundation. When this is the case, you will usually find a sump pump installed to take care of the problem. Sump pumps are fairly simple machines. They are installed in a trench underneath the floor level in your basement with a float which will turn on the sump pump when there is water in the trench, and the pump will pump the water outside, away from your home. If the pump doesn’t run for a long period of time, it is possible for the float to get stuck, preventing proper operation. It is good to test the pump to make sure it functions properly by pouring some water into the trench until the pump starts. You should especially do this if a rainstorm is forecast in your area and the pump will be needed.