backflow prevention Articles

  • Successful Isolation of 48” Water Main and Backflow Prevention

    Salem, OR When they contacted Hydra-Stop, the primary need for the City of Salem was replacing a section of the existing water mains that were aging and put the City’s water supply at risk. In order to do this they had to isolate the water main from the City’s water system. This 48” line had been in the ground for fifty years. There were significant concerns about the integrity of the pipe and ...


    By ADS Environmental Services

  • An Update on Louisville MSD`s Basement Backflow Prevention Program - 10 Years and 6,700 Installations Later

    ABSTRACTLouisville and Jefferson County Metropolitan Sewer District (MSD) is responsible for stormwater and wastewater service for the Louisville, Kentucky metropolitan area. A longstanding problem for MSD has been basement flooding due to sewers that are surcharged from wet weather. A non-traditional program was developed by MSD as a means to address this problem in a cost effective and timely ...

  • Protecting Homes from Sewage Backup - Metropolitan Sewer District of Greater Cincinnati’s Water in Basement Prevention Program

    ABSTRACT Many customers of the Metropolitan Sewer District of Greater Cincinnati (MSDGC) have experienced basement backup due to surcharging of the sanitary and combined sewer systems. The surcharging was caused by excessive infiltration and inflow entering the sanitary sewer system and a lack of capacity in the combined sewer system. As part of the Consent Decree that MSDGC signed with the ...

  • Security Assessments and Cross-Connection Control

    Security Assessments and Cross-Connection Control We have all become more aware of security issues in recent years. Security has become a part of our lives. It affects our travel, the way we conduct business, even the way we live. Water utilities have incorporated many security measures into their daily operations. Large sums of money have been spent to conduct vulnerability assessments ...

  • WaStop prevents flooding on Meritt Island Case Study

    Problem: Brevard County converted two borrow pits into retention ponds for polluted stormwater collected from the Pine Island Canal. This waterway collects stormwater from a 5,970 acre drainage basin, including citrus groves and agricultural land, and deposits it into the Indian River. A method for allowing water to flow from the canal to the converted borrow pits and to ...


    By Wapro AB

  • Hirschthal, Switzerland protected with WaStop DN1200 - Case Study

    Location: Hirschthal, Switzerland Problem: During times of high river levels, flooding occurred in the town of Hirschthal. This flooding occurred when the river level was higher than the stormwater outfall. This lead to river water pushing back up the outfall pipe, and spilling onto roads and residential areas. Solution: A DN1200 (NPS 48″) ...


    By Wapro AB

  • Sanitary Check Valves Astonishing Features

    Sanitary check valves are mainly used to prevent the backflow of fluids. These valves only allow the flow in one direction. They are usually very small and simple.  As the name suggests, they are designed to maintain a high level of hygiene while maintaining a continuous flow of the medium. These valves are mainly used for highly viscous liquids such as gels and ice cream. ...


    By Adamant Valves

  • Case study - Shopping center avoids litigation by resolving sewer odor problems

    Mazzei Injector Company, LLC is a recognized industry leader in gas to liquid mass transfer primarily from its proven 25 year experience with ozone applications. In addition, Mazzei has installed the same patented Venturi injector and mixing nozzle technology in many municipal and industrial wastewater systems in applications at lift stations, equalization tanks, aeration basins, activated sludge ...

  • WaStop Access protects residents in Lewiston NY, USA - Case Study

    Location: Lewiston New York, USA Client: City of Lewiston Problem: The effect of combined sewers (combined wastewater and storm water) and an area prone to flooding from the Niagara River, a section of Upper Mountain Rd in Lewiston New York have experienced repeated flooded basements. On a visit with Jeffery Ritter of the City of Lewiston, Bob ...


    By Wapro AB

  • Introduction of Check Valve

    With the continuous improvement of high-tech development, valve conditions are also getting higher and higher. New valve products continue to enter the market, the upgrade of drive mode, changes of structures as well as temperature and pressure corrosion on the material requirements of the ...


    By Adamant Valves

  • ROMAG storm water screen system for the CSO works La Maladière in Neuenburg

    With the RSW-K high-capacity storm water screen and a emergency shut-off valve, the volume of the upstream sewerage system is optimally utilized and the receiving body ideally protected against contamination. The storm water screen removes visible solids from the sewage water before the water is discharged into the receiving body. At the La Maladière surplusing works, the ROMAG RSW-K ...


    By ROMAG aquacare ag

  • Ecofriendly Alternative to Fight Grease Build-ups

    Grease traps or Grease interceptors capture the grease that goes down the kitchen drains. The simple fixture prevents slimy build up inside the drainpipes, which may result in choked drains and backflows. It is essential to cleanout these traps timely before the build up is too high to tackle. Properly maintained grease interceptors allow smooth operation of the drains by keeping the water ...


    By Hydra International Ltd

  • The steel casing and pulling and driving machine

    In the process of drilling bored piles usually used steel casing, with 4mm-8mm thick steel plate   1, positioning;   ...

  • Hydroflo diaphragm pumps help reduce boiler corrosion and maintenance costs

    ABTCo, located in Alpena, Michigan, is a decorative wood paneling producer using three boilers to generate 7 MW of electricity – half the power needed in the plant plus steam for pulp processing. As in many boiler operations, the main enemy is corrosion, which can destroy system components and lead to boiler failure. Although internal boiler surfaces are protected by a film of magnetic ...


    By Aquflow

  • Why You Should Use Sanitary Ball Valves

    Sanitary ball valves are used in a wide range of applications involving high pressure. These valves are popular for two main reasons. First, they allow unrestricted total flow that does not allow any hardware restriction through the valve. Second, the valve can also be serviced without the complete ...


    By Adamant Valves

  • Delivering automation to test stations - Case Study

    CeraMem Corporation is a developer of metal oxide gas concentration sensors in Waltham, MA. Their test engineers required mass flow controllers that were easy to intregrate and calibrate. They also demanded fast response and high accuracy in order to reduce test cycle length and improve the quality of the data. Test station requirements demanded that controllers were capable of adjusting ratios ...


    By Sierra Instruments, Inc.

  • Carbon Dioxide (CO2) Leak in Soda Machines

    Carbon dioxide, also known as CO2, is a very well known gas type but not everyone knows how deadly it is. Most people know it as a gas that humans exhale but commercially, it is manufactured and shipped as a liquefied compressed gas or is used as dry ice in its solid form. A common use of CO2 gas is in soda fountain machines to carbonate soft drinks by pressurizing the CO2 ...

  • Sanitary Check Valves Principles and Parameters

    The sanitary check valve will open when the media flows forward and will close when the medium returns to flow. These are mainly automatic valves, whose main function is to prevent the backflow of the means, as well as to avoid the inversion of the pump and the drive motor and the release of the container means. It is also used for safety protection in auxiliary systems where ...


    By Adamant Valves

  • The steel casing and pulling and driving machine

    In the process of drilling bored piles usually used steel casing, with 4mm-8mm thick steel plate   ...


    By lydite trading company

  • Preparing a Beachside City for Future Storm Events with Proco ProFlex™ Check Valves - Case Study

    Project: Post Hurricane Sandy Storm Drainage Update Location: Long Branch, New Jersey Contractor: Precise Construction Proco Products Agent: Valve Tech Sales Distributor: Atlantic Waterworks Long Branch is an oceanfront city of about 30,000 people in northern New Jersey. Much of the city ...


    By Proco Products, Inc.

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