This water feature was constructed by Marenakos, Inc. for a private residence in a Seattle suburb. The project used: 500 tons of High Cascade Granite Boulders, 100 tons of Bandera Weathered Granite Boulders, 75s ton of "Little River" River Rock, 65s ton of Wilkeson Antique Rubble masonry stone, 13,500 sq. ft. PVC Liner (30 mil.), and 150 yards of concrete & granite. A 5 horsepower pump provides 500 gallons of water per minute to the top pond. There is also a 100 gallons per minute re-circulation pump with an ultraviolet light for algae control. The construction took 6 weeks to complete. © 2008 Marenakos Rock Center