If a pool is surrounded by a poured concrete deck instead of a paver deck, our 2” Square Drain System is a reasonable starting point. Square Deck Drains are our most basic model designed with a concave top for minimal debris collection and a maximum flow rate of 32.4 gallons per minute. Our Square Deck Drain stands 3/4” tall and the Removable stands at 3” with bondable, heavy walls, and a system proven in years of outdoor applications.