Salt water Chlorination
Hindustan Chloro Equipments, Chemical Injection Technologies, Inc., Simple Controls

Sand Filter Liners
Orenco Systems, Inc.

Sand Filter Manifolds
Orenco Systems, Inc.

Sand Plant Effluent Clarifiers
L & Steel Fabrication & Machining

Sanitation
Bioscience, Inc., WorldWare Enterprises Ltd., Alpha-Gamma Technologies, Inc., more...

Scale Cartridges
Campbell Mfg., Inc., Willis

Scale Control Systems for Turbo Ice Generators
Water Treatment Technology

Scale Inhibitors Systems
Aqua Pure Technology/GE Infrastructure, Novel Surface Treatments

Screen Filters
Genesis Filtration Inc., Graver Technologies, Cambridge Wire Cloth Company, more...

Screens
Amistco Separation Products, Inc., Franklin Miller, Inc, Krebs Engineers, more...

Sea Water Desalination Plant
Agape Water Solutions, Inc., Indagro, Ion Exchange (India) Ltd., more...

Seawater Reverse Osmosis
Reverse Osmosis of SF, Coron Engineers, Aatech, Inc., more...

Sediment Filters
Pure Aqua, Inc., Reserve Filter Systems, SpectraPure® Inc., more...

Sediment Trapper Filters
Campbell Mfg., Inc., Willis, Sun Pumps, Inc.

Sedimentation Tanks
AT&F Advanced Metals LLC, Delattre-Levivier Maroc, Lenntech Water purification & air treatment Holding B.V.

Self-Cleaning Screen Filtration Systems
Procedyne Engineers, Suzikline Group, Water Treatment Technology, more...

Self-Flushing Chemical Feed Systems
Global Treat, Inc.

Separate Bed Ion Exchange Systems
Water & Power Technologies

Septic Receiving Stations
Headworks, Inc.

Septic Tanks
Chem-Tainer Industries, Fred C. Gilbert Co., Peabody Engineering & Supply Inc., more...

Service Deionization
Suzikline Group, LT Technologies, Inc., GE Mobile Water Logistics, more...

Sewage Sludge Stabilization Systems
R D P Technologies, Inc.

Shallow Gravelless Drainfields
Orenco Systems, Inc.

Shallow Water Skimmer
Pollardwater.com

Shear Enhanced Anaerobic Digestion
Biothane Corp.

Silica Removal Plants
International Steel Services, Inc.

Silt Density Index Equipment
GE Water & Process Technologies

Single Mechanical Scales
Global Treat, Inc.

Single-Entry Cup Screens
Brackett Green USA, Inc.

Skimmers
Douglas Engineering, Absorbents Midwest, Inc., Muddy River Technologies Inc., more...

Slag Skimmers
The New Keibler-Thompson Co.

Slime Inhibitors
Manitowoc Ice, Inc.

Sludge Thickeners
Enviro Solutions & Services, Advanced Chemical Systems, Inc., Hoffland Environmental

Soda Ash Feed Systems
Northland Industrial Specialties, LLC

Soda Water Plant
Sapsorb Water System, Environmental Products (India) Pvt. Ltd.

Sodium Bisulfite Systems
Aqua-chem, Inc.

Sodium Hypochlorite Chemical Injection Systems
Aqua-chem, Inc.

Softeners
Eads Company, Metro-Quip, Inc., Advanced Environmental Solutions, Inc., more...

Softening Purifiers
Moody Bros, Inc., Bullen Pump & Equip Inc, Warm Stream, more...

Solar Water Pasteurizers
Safe Water Systems

Solid Chlorine Tablet Feeders
Global Treat, Inc.

Solid Reclamation Systems
Jadair International

Solid Washout Systems
Jadair International

Solvent Recovery Systems
Advanced Environmental Solutions, Inc., Zero Discharge Technologies, Inc., Barnebey & Sutcliffe Corp.

Solvent recovery, Effluent Recycling
Zero Discharge Technologies, Inc., Barnebey & Sutcliffe Corp., ETK International Ferrites Ltd.

Solvent Washers
NexGen Enviro Systems Inc., Solvent Waste Management, Inc.

Spiral Membrane Elements
Infinitex Corp., GE Water & Process Technologies

Spiral Wound Ultrafilters
Suzikline Group, Better Water, Inc.

Spraymaster Deaerators
PTC Exports Pvt. Ltd., Steamline, FPC Engineering Works. Pvt. Ltd., more...

Spring Water
Aqua Uno Beverage Corp., Economic Enterprises Ltd.