Underdrain Assemblies
swtwater.com Water’s Edge™
Distribution System Kits for Top & Bottom Threaded Tanks
Water’s Edge™ Distributor System Kits are custom tailored to meet your specific application needs. Our design engineering expertise and more than 30 years experience ensure that you get the best distribution solution available.
SWT Distributor System Kit for Tanks with Top & Bottom Threaded Openings        
SWT’s Water’s Edge Distributor System Kits for Tanks with Top and Bottom Threaded Openings are fabricated from non-corrosive FDA and NSF approved materials for use in softeners, deionizers, carbon filters, sediment filters, iron filters, and multimedia filters. They are designed for FRP molded tanks with a 4 inch No. 8 threaded top opening and a 6 inch No. 8 threaded bottom opening. They can also be modified to fit tanks of other manufacture.

Water’s Edge Distributor Systems are extra strong and durable for use with heavy filtration medias (gravel, sand, garnet) and can be used with a variety of regenerants including salt, caustics, acids, chlorine, etc. The collection screens (laterals) have 0.010 standard slotting for use with 50 mesh filter media or larger. They are designed to spread flow evenly across the filter bed to eliminate dead zones and to provide proper and even lift and separation during backwash.
Technical Specifications
Max. Recommended Operating Temperature: 140°F (60°C)
Max Recommended Operating Pressure: 150 psi
ΔP @ 5 ft./sec. Velocity: ≤ 3 psi
Materials of Construction (Standard): PVC, ABS, Buna-N
Slot Width (Standard): 0.010 inch (0.254 mm)
Slot Area: 2.5 x Pipe Area
Available Options: See Notes below
Water’s Edge DS Kits for Top & Bottom Hole Tanks — Common Assemblies
SM-DS162 16 x 65 2 inch Socket 6 (3/4 inch)
SM-DS212 21 x 62 2 inch Socket 8 (3/4 inch)
SM-DS242 24 x 62 2 inch Socket 8 (3/4 inch)
SM-DS302 30 x 72 2 inch Socket 12 (3/4 inch)
SM-DS3025 30 x 72 2.5 inch Socket 12 (3/4 inch)
SM-DS303 30 x 72 3 inch Socket 12 (3/4 inch)
SM-DS362 36 x 72 2 inch Socket 12 (3/4 inch)
SM-DS3625 36 x 72 2.5 inch Socket 12 (3/4 inch)
SM-DS363 36 x 72 3 inch Socket 12 (3/4 inch)
4 inch Side Mount Valve Adapter (P/N UA-1040920) with 4"UN–8 valve base, 1.5 inch riser size, 2 inch FPT inlet/outlet available.
4 inch Side Mount Valve Adapter (P/N UA-1040921) with 4"UN–8 valve base, 1.5 inch riser size, 2 inch BSP inlet/outlet available.
Upper Diffuser can be slotted instead of drilled at additional cost. Add “-S” to part number.
Slot Widths including 0.008, 0.010 (Standard), 0.012, 0.016, 0.020, 0.032, 0.125 inch and larger are available.
Custom sizes, configurations, and materials are our specialty. Contact SWT with your requirements.
Safe Water Technologies, Inc.
996 Bluff City Boulevard
Elgin, IL 60120 USA
Telephone: +1.847.888.6900
Facsimile: +1.847.888.6924
E-mail: info@swtwater.com

Last Updated: November 2, 2022