How could you test a rocks permeability ( to see if water goes through it)?

To test a rock's permeability, you can conduct a simple water flow test. First, drill a hole in the rock and place it in a vertical position. Then, pour a specific amount of water into the hole and measure how long it takes for the water to seep through and exit from the bottom. The time taken and the volume of water that passes through will indicate the rock's permeability; a faster flow suggests higher permeability, while slower or no flow indicates lower permeability.