The large water storage module displaces the water for use with pondless® waterfall reservoirs, rainwater harvesting projects, and other various water feature applications. It is manufactured using recycled materials and designed to efficiently maximize water storage capacity, providing the ability to hold more water with a smaller reservoir footprint. Each large will hold a total volume of 32 gallons. Holding approximately 7.4 gallons of water per cubic foot, the large allows more than 3 times the water storage capacity than gravel will provide. This extra storage capacity will mean less time needed to top off the reservoir due to evaporation. Using will also decrease the amount of labor, liner, and underlayment required during installation. The load-bearing top will support up to 5,472 pounds per square foot, providing years of trouble-free enjoyment and allowing for installation in a wide variety of situations. There are easy to clean, less prone to clogging and come complete with the top, bottom, two sides, and four structural supports.