BACKFLOW TEST CERTIFICATION REPAIR AND INSTALLATION « all pro plumbing and drain cleaning. WE HAVE BEEN ASKED OVER THE YEARS WHY BACKFLOW PREVENTORS ARE REQUIRED…………SO WE DECIDED TO LIST SOME OF THE CASE STUDIES SO AS TO EDUCATE THOSE THAT ASK THAT QUESTION: DATE OF BACKFLOW INCIDENT: June 1. ![]() ![]() LOCATION OF BACKFLOW INCIDENT: Woodsboro, Maryland. SOURCE(S) OF INFORMATION: – Pacific Northwest Section of the American Water Works Association, Summary of Backflow Incidents, Fourth Edition, 1. U. S. Environmental Protection Agency, Cross- Connection Control Manual, 1. Watts Industries, Inc.; Watts Regulator News/Stop Backflow. In June 1. 98. 3, “yellow gushy stuff” poured from some faucets in the Town of Woodsboro, Maryland. Town personnel notified the County Health Department and the State Water Supply Division. ![]() The following is the Department´s 1991 title III ADA regulation published July 26, 1991, which should continue to be used until March 14, 2011. The State dispatched personnel to take water samples for analysis and placed a ban on drinking the Town’s water. Firefighters warned residents not to use the water for drinking, cooking, bathing, or any other purpose except flushing toilets. The Town began flushing its water system. An investigation revealed that the powerful agricultural herbicide Paraquat had backflowed into the Town’s water system. Someone left open a gate valve between an agricultural herbicide holding tank and the Town’s water system and, thus, created a cross- connection. Coincidentally, water pressure in the Town temporarily decreased due to failure of a pump in the Town’s water system. The herbicide Paraquat was backsiphoned into the Town’s water system. Upon restoration of pressure in the Town’s water system, Paraquat flowed throughout much of the Town’s water system. Fortunately, this incident did not cause any serious illness or death. The incident did, however, create an expensive burden on the Town. Tanker trucks were used temporarily to provide potable water, and the Town flushed and sampled its water system extensively. DATE OF BACKFLOW INCIDENT: December 1. CPI designs & manufactures waterproof switches, thermal Switches, and LVDT based Linear Position Sensors for the toughest industrial & military. Plumbing is any system that conveys fluids for a wide range of applications. Plumbing uses pipes, valves, plumbing fixtures, tanks, and other apparatuses to convey. Many years of experience in sourcing the finest wood flooring has made us the experts of Engineered hardwood, Solid wood flooring as well as Herringbone parquet and. LOCATION OF BACKFLOW INCIDENT: Spokane, Washington. SOURCE(S) OF INFORMATION: – Pacific Northwest Section of the American Water Works Association, Summary of Backflow Incidents, Fourth Edition, 1. CASE HISTORYOn December 3. Spokane, Washington, Water Department received complaints about air in the water and dispatched crews to the scene to flush the water mains. Upon investigation, the City Water Department discovered that a compressor at a soft drink bottling plant had injected air into the public water system. Personnel at the bottling plant said that a potable water line into a shop area froze often during winter and that they used compressed air to clear the line. Workers normally closed isolating valves before attempting to clear the line, but they forgot to close the valves this time. Consequently, a large amount of air was injected into the public water system surrounding the bottling plant. The Water Department required the installation of a reduced- pressure principle backflow- prevention assembly at the bottling plant to prevent recurrence of the problem. DATE OF BACKFLOW INCIDENT: March 1. LOCATION OF BACKFLOW INCIDENT: Eugene, Oregon. SOURCE(S) OF INFORMATION: – Pacific Northwest Section of the American Water Works Association, Summary of Backflow Incidents, Fourth Edition, 1. CASE HISTORYOn March 3. Eugene, Oregon, backflowed into the plant’s potable water system. The hot water, which contained an unidentified boiler treatment compound, broke (i. PVC water service pipe to the plant and damaged the City’s water main. An unapproved backflow device consisting of two single check valves was installed in the potable water feed line to the boiler at the tire retreading plant. Both check valves failed. There was no backflow preventer at the service connection to the plant. The water utility ordered the immediate installation of a reduced- pressure principle backflow- prevention assembly at the water service connection to the tire retreading plant. DATE OF BACKFLOW INCIDENT: November 1. LOCATION OF BACKFLOW INCIDENT: Wenatchee, Washington. SOURCE(S) OF INFORMATION: – American Water Works Association, Opflow, May 1. Pacific Northwest Section of the American Water Works Association, Summary of Backflow Incidents, Fourth Edition, 1. CASE HISTORYIn November 1. Endrin was backsiphoned from a pesticide applicator’s truck into a small public water system serving 2. Wenatchee, Washington. Endrin is a very toxic chlorinated hydrocarbon applied to orchards in late fall to control mice. This incident occurred when, by coincidence, three applicators were filling their trucks from three separate hydrants on a water main connecting the public water system’s well to a storage tank. The storage tank was about « mile away from, and about 2. The withdrawal of water to fill two trucks at the lower end of the water main (near the well) created a negative pressure in the higher end of the water main (near the storage tank), and the contents of the truck at the higher end of the water main were backsiphoned into the public water system. The public water system did not employ a full- time operator. Consequently, the contamination problem went undetected and unreported until two days after the incident. During that time, several families drank, and bathed in, the contaminated water. Fortunately, the chemical was greatly diluted in its passage through the storage tank, and therefore, no illnesses were reported. When the State was notified of the contamination problem, it ordered the public water system to shut down, advised consumers of the situation, and initiated a sampling program. Initial samples showed 1. Endrin in the water. The system drained and scrubbed its storage tank and flushed. DATE OF BACKFLOW INCIDENT: January 1. LOCATION OF BACKFLOW INCIDENT: Norfolk, Virginia. SOURCE(S) OF INFORMATION: – Pacific Northwest Section of the American Water Works Association, Summary of Backflow Incidents, Fourth Edition, 1. U. S. Environmental Protection Agency, Cross- Connection Control Manual, 1. Watts Industries, Inc.; Watts Regulator News/Stop Backflow. CASE HISTORYOn January 2. City of Norfolk, Virginia, complained to the City Water Department that all their drinks were being rejected by customers because the drinks tasted salty. The City Water Department inspected all potable water lines at the restaurant for cross- connections but found none. Then the City Water Department checked with adjacent customers and received another salty water complaint from a shipyard. The same water main lateral served both the restaurant and the shipyard. City Water Department personnel promptly conducted an inspection of the shipyard and discovered that sea water had backflowed into the City’s public water system. The shipyard had a high- pressure fire protection system supplied by sea water. The sea water was delivered by both electric and diesel pumps, which were primed by using a potable water line connected directly to the high- pressure fire protection system. Workers left this priming line open. Thus, while the electric pumps were trying to maintain high pressure in the fire protection system, they were pumping sea water back through the priming line and into the City’s public water system. A backflow preventer had been previously installed at the water service connection to the shipyard. However, the backflow preventer froze and burst earlier in the winter and was removed and replaced with a spool piece to maintain potable water service to the shipyard. To correct the problem, the potable water priming line to the fire protection system pumps was removed. Also, a new backflow preventer was installed at the water service connection to the shipyard. Heat tape was wrapped around the new backflow preventer to prevent freezing of the backflow preventer. DATE OF BACKFLOW INCIDENT: May 1. LOCATION OF BACKFLOW INCIDENT: Winnepeg, Manitoba, Canada. SOURCE(S) OF INFORMATION: – American Water Works Association, Recommended Practice for Backflow Prevention and Cross- Connection Control, AWWA Manual M1. Second Edition, 1. CASE HISTORYOn May 2. Winnepeg, Manitoba, called the City because the drinking water at the refinery had an oily, gasoline- type odor. The City took a water sample, and a test of this sample showed a hydrocarbon in the water. It was determined that a backflow had occurred in the refinery’s laboratory. DATE OF BACKFLOW INCIDENT: September 1. LOCATION OF BACKFLOW INCIDENT: Hillsborough County, Florida. SOURCE(S) OF INFORMATION: – Hillsborough County Water Department. CASE HISTORYOn September 1. Home | Fingerle Lumber. Fingerle Lumber Co. is family- owned and has been in downtown Ann Arbor, Michigan since 1. We feature the most complete selection of lumber, millwork, and related building materials at one location in the Midwest. We take pride in our ability to help you make informed buying decisions by providing you with honest, understandable advice and complete product information. Our goal is for our prices to be competitive - including with those of the BIG BOXES. We believe they are. If you find otherwise, please let us know and we'll probably be able to meet or beat them! SHOP ONLINEThe Shop Online portion of our website allows you to search for the items we sell and view their prices. And our website is one of the very few in which you can actually place orders for lumber and our other related products online. Just tell us when you need your order - today, tomorrow, this week - it's up to you. In southeastern Michigan we can almost always deliver orders via our fleet the next day, sometimes the same day the order is placed. We regularly deliver larger orders throughout Michigan and the Great Lakes region with our own fleet. For distant locations and/or smaller orders we utilize UPS and other delivery companies. Please keep in mind that shipments of heavy and/or bulky items to distant destinations will incur substantial shipping costs. If you are considering such an order, please call us so that we can determine whether we can provide a good value on a delivered basis. OUR PRODUCTSFor detailed product information please click on the categories at the left side of this page. Within those pages you will also find links to many of those items in our online store, where you can view their prices. If we don't have what you want or need, we'll try hard to get it for you. To check on a specific quantity, please call. TALK TO USOn- line research is helpful, but sometimes there is no substitute for speaking with an expert. We are always happy to discuss your project and answer your questions. Please call or stop by. We look forward to helping you! Click PLAY to listen to our popular radio jingle.
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