A Pondless Waterfall is a re-circulating waterfall or stream without the presence of a pond. Aquascape Pondless Waterfalls work by pumping water contained in a large, in-ground reservoir up through the Waterfall Spillway, allowing the water to flow back down into the reservoir. Spillway Reservoir Pump Plumbing - Waterfall Spillway 22" -Pondless Waterfall Vault - (2) AquaBlox Small Water Storage Modules - EcoWave 2000 Pond Pump - Kink-Free 1.5" x 25' Waterfall & Stream Size Liner & Underlayment Installation Kit Welcome Kit 3 ft. waterfall and stream- may vary based on pond shape and rock size -45 mil EPDM Liner- 10' x 12' -Underlayment- 105 sq. ft. - Black Silicone Sealant - 4.7 oz. -Pond and Waterfall Foam Sealant -PVC glue/ cement Contains a gift for you, a USB with instructions and videos, and a starter water treatment. Instructions & Maintenance Special Order Lead time for this product is 1-3 weeks