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"#8 UN threaded top opening, and a 6"#8 UN (standard) or 4"#8 UN 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 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
MODEL
NUMBER
TANK SIZE
INCHES
CONNECTION
SIZE
TOP ADAPTER
BOTTOM ADAPTER
MALE THREAD
LATERALS
NUMBER (SIZE)
SM-DS162 16 x 65 2 inch Socket 4"#8 UN Top
6"#8 UN Bottom
6 (3/4 inch)
SM-DS1624TB 16 x 65 2 inch Socket 4"#8 UN Top
4"#8 UN Bottom
6 (3/4 inch)
SM-DS212 21 x 62 2 inch Socket 4"#8 UN Top
6"#8 UN Bottom
8 (3/4 inch)
SM-DS2124TB 21 x 62 2 inch Socket 4"#8 UN Top
4"#8 UN Bottom
8 (3/4 inch)
SM-DS242 24 x 62 2 inch Socket 4"#8 UN Top
6"#8 UN Bottom
8 (3/4 inch)
SM-DS2424TB 24 x 62 2 inch Socket 4"#8 UN Top
4"#8 UN Bottom
8 (3/4 inch)
SM-DS302 30 x 72 2 inch Socket 4"#8 UN Top
6"#8 UN Bottom
12 (3/4 inch)
SM-DS3024TB 30 x 72 2 inch Socket 4"#8 UN Top
4"#8 UN Bottom
12 (3/4 inch)
SM-DS3025 30 x 72 2.5 inch Socket 4"#8 UN Top
6"#8 UN Bottom
12 (3/4 inch)
SM-DS30254TB 30 x 72 2.5 inch Socket 4"#8 UN Top
4"#8 UN Bottom
12 (3/4 inch)
SM-DS303 30 x 72 3 inch Socket 4"#8 UN Top
6"#8 UN Bottom
12 (3/4 inch)
SM-DS3034TB 30 x 72 3 inch Socket 4"#8 UN Top
4"#8 UN Bottom
12 (3/4 inch)
SM-DS362 36 x 72 2 inch Socket 4"#8 UN Top
6"#8 UN Bottom
12 (3/4 inch)
SM-DS3624TB 36 x 72 2 inch Socket 4"#8 UN Top
4"#8 UN Bottom
12 (3/4 inch)
SM-DS3625 36 x 72 2.5 inch Socket 4"#8 UN Top
6"#8 UN Bottom
12 (3/4 inch)
SM-DS36254TB 36 x 72 2.5 inch Socket 4"#8 UN Top
4"#8 UN Bottom
12 (3/4 inch)
SM-DS363 36 x 72 3 inch Socket 4"#8 UN Top
6"#8 UN Bottom
12 (3/4 inch)
SM-DS3634TB 36 x 72 3 inch Socket 4"#8 UN Top
4"#8 UN Bottom
12 (3/4 inch)
 
NOTES:
4 inch Side Mount Valve Adapter (P/N UA-1040920) with 4"#8 UN 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"#8 UN 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 end of 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
https://www.swtwater.com

Last Updated: April 1, 2024