Everything that goes under the rocks: EPDM liner rolls, underlayment, seam tape and primer, liner repair kits, waterfall foam, silicone, flexible PVC pipe, bulkhead fittings, unions, check valves and auto-fill kits.

Lay underlayment under the liner to protect it from roots and rocks, and use check valves on pump lines so water does not drain back when the pump is off. Liner rolls ship by freight. Questions on sizing? Call Mystic Koi & Water Gardens in Upland, CA at (909) 920-3767 and talk to people who build and keep ponds every day.