Water Treatment: Gravity Sand Filter (Municipal / Industrial)
Manufacturers: Past and Present
- Cochrane / Crane Cochrane [Crane – Warlo]: Newterra
- Evoqua: Leopold: Xylem
- Graver (Marmon)
- Hungerford & Terry
- Infilco
- Leopold: Xylem
- Newterra
- Ovivo
- Permutit (softener division started in the 1910s) (Permutit USA begun in the 1910s; became part of US Filter in 1993)
- Roberts Filter Group
- Smith Loveless
- Suez / Degremont
- Veolia: Greenleaf: Dusenflo
- WesTech
- WETS LLC
- Wigen
- Xylem: Leopold: Evoqua
Note: There were early designs of “Automatic Valveless Gravity Filters.”
Navigate website: links are listed below:
- 01 Water Treatment: (Random Packing) Packing for Degasifiers (Mass Transfer) (Dump Packing)
- 01 Water Treatment: (Random Packing2) Materials of Construction
- 01 Water Treatment: Accessories for a Forced Draft Degasifier / Decarbonator
- 01 Water Treatment: Accessories for a Spray Tray Deaerators (Industrial)
- 01 Water Treatment: Aeration (Industrial)
- 01 Water Treatment: Air Cooled Condensers Industrial
- 01 Water Treatment: Automatic Self Cleaning Filter-Strainer / Automatic Backwash Filter-Strainer (Municipal / Industrial)
- 01 Water Treatment: Boiler Blowdown Tanks / Blowdown Separators (Industrial)
- 01 Water Treatment: Boiler Tubes
- 01 Water Treatment: Boilers (Industrial)
- 01 Water Treatment: Brine Maker (Industrial)
- 01 Water Treatment: Bubble Cap Trays (Mass Transfer) (Valve Trays)
- 01 Water Treatment: Cartridge Filter Housings (Commercial, Municipal, Industrial)
- 01 Water Treatment: Chemical Test Kits / Water Test Kits
- 01 Water Treatment: Clarifiers (Municipal / Industrial)
- 01 Water Treatment: Condensate Polisher: Demineralizer (Industrial)
- 01 Water Treatment: Cooling Towers (Commercial and Industrial)
- 01 Water Treatment: Dealkalizer
- 01 Water Treatment: Demineralizer (Industrial): Cation, Anion, Mixed Bed
- 01 Water Treatment: Ejectors and Eductors (Jet Pumps) Industrial
- 01 Water Treatment: Exhaust Heads
- 01 Water Treatment: External Vent Condenser
- 01 Water Treatment: Feedwater Heater (Industrial)
- 01 Water Treatment: Flash Tanks (Industrial) (steam)
- 01 Water Treatment: Forced Draft Aerators
- 01 Water Treatment: Forced Draft Decarbonator / Degasifier / VOC Stripper (Industrial)
- 01 Water Treatment: Horizontal Pressure Sand Filters (Municipal and Industrial / Commercial)
- 01 Water Treatment: Internals, Laterals, Underdrain Systems and Resin Traps: Commercial Municipal Industrial
- 01 Water Treatment: Ion Exchange Resin (Industrial): Cation and Anion Resin
- 01 Water Treatment: Lamella Clarifier
- 01 Water Treatment: Membrane Demineralizer / Desalination / (RO) Reverse Osmosis / Seawater Treatment (Municipal and Industrial)
- 01 Water Treatment: Mist Eliminator for Degasifiers / Decarbonators / Scrubbers (Demister Pad)
- 01 Water Treatment: Pressure Leaf Filter (Industrial)
- 01 Water Treatment: Sample Coolers
- 01 Water Treatment: Spray and Packed Column Type Deaerator (counterflow) for O2 Removal (Industrial)
- 01 Water Treatment: Spray Nozzles and Spray Valves
- 01 Water Treatment: Spray Tray Deaerators (Industrial) (Counterflow)
- 01 Water Treatment: Steam Condensers Industrial
- 01 Water Treatment: Steam Tables and Solubility Tables
- 01 Water Treatment: Temporary Strainer Industrial
- 01 Water Treatment: Test Strips for testing of water hardness, iron, chlorine, nitrate, dissolved oxygen, TDS, and other containments
- 01 Water Treatment: Turbines (Industrial)
- 01 Water Treatment: Vacuum Deaerator / Vacuum Degasifier (Industrial)
- 01 Water Treatment: Valve types and valve material of construction
- 01 Water Treatment: Valve: Control Valve for Industrial Water Treatment (Industrial)
- 01 Water Treatment: Water Filters (Municipal and Industrial): Multi Media Sand Filters
- 01 Water Treatment: Water Softeners (Industrial)
- 01 Water Treatment: Whom sold water softeners first in the USA?
- 01b Fluid Treatment: Chlor-Alkali
- 02 Petrochemical
- 02 Petrochemical: Deoiling Hydrocyclones
- 02 Petrochemical: Free Water Knockout Tank – separation of oil and water
- 02 Petrochemical: Heater Treater
- 02 Petrochemical: Sand Separator
- 02 Petrochemical: Vacuum Distillation
- 03 Seawater: Deaerator
- 03 Seawater: Evaporator for Seawater, and other Industrial & Municipal Applications
- 04 Environmental: FGD: Flue Gas Desulphurization
- 04 Environmental: Gas Treatment: Chemical Scrubber (Odor Control)
- 04 Environmental: Gas Treatment: Vapor Phase Carbon Units (VOC Control)
- 04 Environmental: Hydrocyclones (Solids or Particles Separation)
- 1
- About the Author
- Advertising
- Ancestry Research
- Architecture: Air Curtains
- Architecture: PreEngineered Buildings and Structures (Steel and Fiberglass)
- Bible
- Blowers and Fans (Commercial, Municipal and Industrial)
- Breakfast Hall of Fame
- Contact Us
- Corrosion Resistance Charts and Guides (Chemical Resistance)
- Cost Estimating
- Cost Estimating 101
- Cost Estimating: (Transportation) Engineers Estimate
- Cost Estimating: (Water and Waste Water) Engineer’s Unit Cost and Cost Study
- Cost Estimating: Buildings
- Cost Estimating: Contractor’s Other Costs
- Cost Estimating: Cost Books and Cost Guides
- Cost Estimating: Cost Estimating Books that PDF versions are online
- Cost Estimating: Department of Transportation Average Contract Cost Data
- Cost Estimating: Discussion Purposes Costs: Concrete
- Cost Estimating: Earthwork Cost Estimating Software
- Cost Estimating: Electrical
- Cost Estimating: Electrical Cost Estimating Software
- Cost Estimating: Engineer’s Estimating Process: Military and Government
- Cost Estimating: Equipment
- Cost Estimating: Equipment (Cranes, Excavators, etc.)
- Cost Estimating: HVAC
- Cost Estimating: HVAC Cost Estimating Software
- Cost Estimating: Mechanical
- Cost Estimating: Prevailing Wages
- Cost Estimating: Rebar Cost Estimating Software
- Cost Estimating: Rough Order Magnitude Estimate: Forced Draft Decarbonator
- Cost Estimating: Rough Order Magnitude: Spray Scrubber Deaerator
- Cost Estimating: Website Pricing, Reference Pricing, List Price Sheets
- Cost Estimating: Weight of Concrete, Metal, Plastics, Resin, and Sand
- Damper (includes HVAC Damper)
- Damper: Butterfly Damper (includes HVAC Damper)
- Donations
- Ductwork Sizing
- Ductwork: Metal, Fabric, PVC, PPL, and Fiberglass
- Electrical
- Electrical: Alarms, Buttons, Lights, Power Supply, Relays, Sensors, Switches, Terminal Blocks, and Timers
- Electrical: Cable Trays, Ladder Systems, and Raceways
- Electrical: Cables for Computers, Printers, and Networks
- Electrical: Circuit Breaker / Switchgear / Transformer (Industrial)
- Electrical: Conduit
- Electrical: Conduit Hangers and Pipe Straps
- Electrical: Enclosures (Commercial, Municipal, and Industrial)
- Electrical: Explosion Proof Enclosures, Junction Boxes, and Sealing Fittings
- Electrical: Fiber Optics
- Electrical: Motors
- Electrical: PLC Programmable Logic Controller and HMI Human Machine Interface (Commercial Municipal Industrial)
- Electrical: VFD: Variable Frequency Drives
- Electrical: Wire and Cable
- Electronics: Computers, Laptops, and Tablets
- Electronics: FAX
- Electronics: Printers
- Fire Protection
- Generators Temporary (commercial or industrial)
- Guest Article
- Help Others
- HVAC
- HVAC Components
- HVAC: Air Conditioning (Commercial and Industrial)
- HVAC: Circulator Pumps
- HVAC: Ductwork
- HVAC: Fan Coils
- HVAC: Fans
- HVAC: Grilles, Registers, and Diffusers
- HVAC: Louvers
- HVAC: Terminal Units
- HVAC: Zone Valve
- info101
- Instrumentation
- Instrumentation: (Chemical) Injection Quill
- Instrumentation: Analyzers for Water Treatment (Commercial / Industrial)
- Instrumentation: Block Manifold, Bar Manifold, and Hydraulic Manifold [for valves, instruments, and other components]
- Instrumentation: Caged Level Switch (stainless steel Float)
- Instrumentation: Calibration Column
- Instrumentation: Deaerator Control Panel
- Instrumentation: Diaphragm Seals (Remote Seals) (Gauge Guards) (Chemical Seal) (Commercial / Industrial)
- Instrumentation: Displacer Controller (Level Control)
- Instrumentation: External Instrument Chamber / Level Bypass Chamber / Water Column / Manifold
- Instrumentation: Flow Switch and Level Switch for Water Treatment
- Instrumentation: Gauge Glass / Level Gauge: Industrial
- Instrumentation: Liquid Level Controller with Float: Industrial
- Instrumentation: Magnetic Level Gauge
- Instrumentation: Manifold Valve
- Instrumentation: Pneumatic
- Instrumentation: Pressure Gauge / Pressure Instrument: Industrial
- Instrumentation: Pressure Switch and Temperature Switch for Water Treatment
- Instrumentation: Sight Flow Indicator for water treatment
- Instrumentation: Thermometer / Temperature Indicator: Industrial
- Instrumentation: Transmitters for Flow Level Pressure Temperature (Commercial / Industrial)
- Instrumentation: Tubing & Instrument Fittings
- Instrumentation: Tubular Borosilicate Glass Tubes
- Insulation for piping, valves, ductwork, tanks, and vessels
- Life Safety: see Fire Protection
- Manholes Concrete
- Pipe
- Pipe and Conduit Hangers
- Pipe Custom Shop Pipe Fabrication (Pipe Spools / Headers / Manifolds)
- Pipe Fittings: Carbon Steel and Forged Steel
- Pipe Flange Gaskets: Gaskets for Flanges in Piping, Valves, Manways, Vessels, and Tanks (Municipal and Industrial)
- Pipe Sizing
- Piping and Fittings: A20 and C20 and Duriron
- Piping and Fittings: ABS
- Piping and Fittings: Aluminum
- Piping and Fittings: Brass
- Piping and Fittings: Bronze
- Piping and Fittings: Clay or VCP
- Piping and Fittings: Copper
- Piping and Fittings: CPVC
- Piping and Fittings: Ductile Iron and Cast Iron
- Piping and Fittings: FRP Fiberglass (Commercial, Municipal and Industrial) (GRP)
- Piping and Fittings: Grooved Systems
- Piping and Fittings: HDPE
- Piping and Fittings: Lexan / Polycarbonate: Tubing and Plate/Machining
- Piping and Fittings: Lined Iron and Lined Steel
- Piping and Fittings: Monel (Alloy 400, 405, K-500)
- Piping and Fittings: PE Polyethylene
- Piping and Fittings: Pex
- Piping and Fittings: PPL Polypropylene
- Piping and Fittings: Pre-Fabricated Manifolds: pre-engineered / pre-manufactured / pre-fabricated pipe-manifolds
- Piping and Fittings: PVC
- Piping and Fittings: PVDF and Kynar
- Piping and Fittings: Stainless Steel
- Piping and Fittings: Teflon (ECTFE PTFE FEP PFA)
- Piping and Fittings: Titanium
- Piping and Fittings: Vacuum Jacketed Piping (Vacuum Insulated Piping)
- Piping: Anodes
- Piping: Brick, Concrete, and Redwood
- Piping: Concrete
- Plumbing: Safety Eye Wash Station
- Plumbing: Drinking Fountain (and Bottle Filler Station)
- Plumbing: Fixtures
- Plumbing: Hot Water Heater
- Privacy Policy
- Pump: ANSI B73.1 Centrifugal
- Pump: HVAC Circulator Pumps
- Pump: Liquid Ring Vacuum Pump (Industrial)
- Pump: Mechanical Seals for Pumps
- Pump: Pre Designed Chemical Feed System (Pre Engineered)
- Pump: Seal Water System for pumps
- Search Engines: partial list
- Silencer: Silencer / Separator for Liquid Ring Vacuum Pumps
- Silencer: Vent Silencer
- Sitework: Irrigation Systems
- Sitework: Rental of Construction Equipment
- Sitework: Temporary Office Trailers
- Sitework: Trenchless Repair
- Sports and the Water Treatment Industry
- Sports Hall of Fame
- Sports NFL Oldest QBs
- Sports: All Weather Running Track Manufacturers [and Contractors]
- Sports: Books For Sale (Sports)
- Sports: Masters Track & Field
- Sports: Most championships won by a professional athlete
- Structural: Caged Ladders, Platforms and Railings (Commercial and Industrial)
- Structural: Grating and Railings
- Structural: Rebar (Reinforcing Steel)
- Tank
- Tank Sizing
- Tank: Air Receiver
- Tank: Boiler Blowdown Tanks / Blowdown Separators (Industrial)
- Tank: Brick, Concrete, and Redwood
- Tank: Bypass Feeder and Chemical Pot Feeder
- Tank: Coatings (Municipal and Industrial)
- Tank: Condensate Pot, Condensate Chamber, Seal Pot, Seal Pot System, Seal Water Pot
- Tank: CPVC
- Tank: Expansion Tank and Bladder Expansion Tanks
- Tank: Flash Tanks (Industrial) (steam)
- Tank: FRP Fiberglass
- Tank: Guy Wire Kits
- Tank: HDPE
- Tank: Polyethylene (PE)
- Tank: Polypropylene (PPL)
- Tank: Prestressed Concrete Tank
- Tank: Propane Industrial
- Tank: PVC Tank
- Tank: PVDF / Kynar
- Tank: Stainless Steel
- Tank: Teflon
- Tank: Underground Storage Tanks
- Tubing and Fittings: Silicone
- Valve
- Valve: Actuators: Electric
- Valve: Actuators: Pneumatic
- Valve: Angle (Commercial and Industrial)
- Valve: API6A
- Valve: Backflow Preventer
- Valve: Backpressure Valve
- Valve: Balancing Valves, Suction Diffuser Valves and Triple Duty Valves
- Valve: Ball Check Valve (Industrial)
- Valve: Ball Valve: of Brass or Bronze Body (Commercial Industrial Municipal)
- Valve: Cartridge Valve
- Valve: Constant Flow Regulator
- Valve: Control Valve for Industrial Water Treatment (Industrial)
- Valve: Corporation Valves and Corporation Stops
- Valve: Diaphragm
- Valve: Earthquake
- Valve: Fire Protection Fire Hydrant
- Valve: Flame Arrestor
- Valve: Float & Lever Valves and Lever Valves and Lever Operated Dump Valve
- Valve: Gauge Cock
- Valve: Knife Gate / Slide Gate / Sluice Gate
- Valve: Limit Switches
- Valve: Needle Valves
- Valve: Overflow Traps and Float Type Drain Traps and Mechanical Dump Valve Industrial
- Valve: Pinch
- Valve: Plug
- Valve: Post Indicators
- Valve: PRV
- Valve: Pulsation Dampener and Tank: Surge Control
- Valve: Regulator for Air or Gas or Steam (Commercial / Industrial)
- Valve: Relief Valve ASME Section VIII for steam service
- Valve: Relief Valves
- Valve: Solenoid Valve
- Valve: Steam Solenoid Valve
- Valve: Steam Trap
- Valve: Thermostatic Mixing Valve
- Valve: Trunnion Ball Valve
- Valve: Vacuum Breaker / Vacuum Relief
- Valve: Water Hammer Arrester
- Valve: Water or Fire Protection Double Check
- Vessels and Tanks: Aluminum
- Vessels: ASME Heads and Manholes for pressure vessels
- Vessels: Rubber Lining of Vessels
- X High Schools in Coachella Valley area
- X Junior High Schools in Coachella Valley area
- x Parks in the Coachella Valley area (partial list)