When you're pouring new concrete, you might be tempted to add a little water to the mix in order to make it easier to work with. However, water can actually weaken your concrete and reduce its strength. That's why it's important to only use the amount of water that's specified in the recipe. If you do need to add water to your concrete, be sure to use clean, fresh water. Water that's been sitting around for a while can contain contaminants that will weaken your concrete. Also, avoid using too much water, as this can also reduce the strength of your concrete. If you're not sure how much water to use, ask your concrete supplier for advice. They can help you get the perfect mix of water and concrete for your project.