The Daldorado DalMax™ series of unblockable large area swimming pool main drains are specifically designed for new pool construction or renovation. The DalMax™ series of swimming pool large area main drains are certified to APSP-16 2017 standards by IAPMO, and NSF50 certified for material composition. DalMax large area main drains ship complete with sump that includes a built-in frame, grate, approved fasteners and a removable internal strength support, which remains throughout construction. Sumps features a FRP 3″ water stop, 5″ from top of sump. Outlet sizes and locations must be specified when ordering.
DalMax Fiberglass Large Area Main Drain-18 in x 36 in x 34 in – 4 inch Outlet
– Constructed of fiberglass and grating with a large open area of 62%– Schedule 40 PVC slip connections– Open Area: 401.76– GPM Flow (floor) at 1.5 FPS: 1,880– GPM Flow (wall): 2,080– Outlet Size: 4″– Shipping Weight: 80 lbs.
General Certificate of Conformity (Service Life: Life of Aquatic Facility for Sump, 25 Years for Grates and Fasteners. 10-Year Limited Warranty).
