Yes, but it is very important to understand the weight on your water tank. A full water tank can range between 500 - 2,000+ lbs. We NEVER recommend storing your water tank on top of something that is hollow, that absorbs water, that is flimsy, that breaks down overtime, or anything that you are unsure can hold the weight. If you are looking for a safe option to separate your tank from the ground, our leach barrier is a great option.