Water weighs about 62.4 pounds per cubic foot. When Seattle’s heavy rains saturate the soil around your foundation, that water has nowhere to go but against your walls. This is Hydrostatic Pressure. It is strong enough to snap concrete and bow heavy block walls inward. At Basement Expert, we don’t try to “block” this pressure with a thin coat of paint; we relieve it. Our dimple boards and active drainage systems give that water a path of least resistance, moving it away before it can damage your home.