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7.1.D. - Page 13
<br /> US 6,627,089 Bi
<br /> 5 6
<br /> A water testing and chlorinating system or other remedial A step of testing the water and adding any desired matter
<br /> water testing additive system 26 can add any desired matter to the flow of water in the closed conduit system can take
<br /> to the outflow of water in the closed conduit system. place using a water testing and chlorinating system or other
<br /> The closed conduit system preferably uses one first flex- remedial water testing additive system 26 where a step can
<br /> ible hose 23 from the first point of the water supply system, s add any desired matter to the outflow of water in the closed
<br /> hydrant 40A to the filters and one second hose 24 from the conduit system,including the step of chlorinating the water.
<br /> filters 22 to the second point of the water supply system, The method further comprises preventing the draining of
<br /> hydrant 4013. The second hose 24 is preferably provided the system by providing in the at least one second hose 24
<br /> with a spring-loaded flapper valve 27 to keep the system from the filters 22 to the second point,hydrant 4013,of the
<br /> from draining after disconnecting,and thereby prevent any to Water supply system a airing-loaded flapper valve 27 to
<br /> water from escaping keep the system from draining after disconnecting.
<br /> The portable re-circulating/filtering/flushing system 20 is
<br /> The closed conduit system with the hoses 23 and 24,the preferably mounted on a vehicle and is transported to each
<br /> filters 22,the pump 21,inspecting and testing and additive section of the water supply system to clean the entire system
<br /> stations 25A,25B,and 26 are all preferably mounted on a section by section in the water mains 30,31,and 32 between
<br /> portable means of transport, such as a large bobtail truck, 15 pairs of hydrants, such as the water main 30 between the
<br /> semi truck/trailer,a trailer or other mobil means for moving hydrants 4013 and 40A.
<br /> the system to all points in the water supply system for Mounted to the truck/trailer vehicle is preferably a large
<br /> cleaning one section at a time. multi-media filter system with one to five filter vessels 22 all
<br /> In practice, a method of re-circulating/filtering/flushing depending on the flow requirements needed to serve a
<br /> for cleaning water supply systems in an environmentally 20 particular application.On the inlet side of the filter system
<br /> responsible and efficient manner comprises the steps of is a check valve and a section of clear tube 25A to visually
<br /> pumping and filtering and conducting the flow of water inspect the influent or incoming water.On the outlet side of
<br /> through the closed conduit system 20 retaining all of the the filter system is a spring-loaded Capper valve 27 to keep
<br /> water within the closed conduit system and not letting any the system from draining after disconnecting.A recirculating
<br /> of the water escape into the environment. 25 pump 21 is preferred to move the water in the closed conduit
<br /> The step of conducting a flow of water through the closed system.Both inlet and outlet are preferably connected to the
<br /> hydrants,40A and 40B or blow-offs with flexible hoses 23
<br /> conduit system 20 between a first point,hydrant 40A,in a and 24 that are rolled up after use. The system further
<br /> water supply system with the water main 30 and a second comprises a metering system 28 for rate of flow and a
<br /> point, hydrant 4013 in the water supply system comprises ao chemical injector 26 for the addition of chlorine etc. to the
<br /> conducting the flow of water out of the water supply system water system.
<br /> at the first point, hydrant 40A, and returning the flow of It is understood that the preceding description is given
<br /> water in to the water supply system at the second point, merely by way of illustration and not in limitation of the
<br /> hydrant 40B. invention and that various modifications may be made
<br /> The step of pumping the flow of water by at least one 35 thereto without departing from the spirit of the invention as
<br /> pump 21 from the first point, hydrant 40A, in the water claimed.
<br /> supply through the closed conduit system 20 to the second What is claimed is:
<br /> point, hydrant 40B, in the water supply system creates an 1.In a municipal water supply system having a plurality
<br /> increased flow rate of the water flowing within the water of sections including water mains, pipes and valves, the
<br /> supply system through the water main 30 from the second 40 improvement comprising:
<br /> point, hydrant 40B, to the first point, hydrant 40A. The a re-circulating/filtering/flushing system including:
<br /> increased flow rate,preferably 5 feet per second,cleans any a closed conduit system having means to connect to an
<br /> undesirable matter,such as deposits,sediment,particulates, isolated section of said municipal water supply sys-
<br /> and other contaminants in the water supply system between tem to form a closed recirculating fluid circuit
<br /> the second point, hydrant 4013 and the first point, hydrant 45 between a first point and a second point in said
<br /> 40A. isolated section,said
<br /> The step of filtering the flow of water through preferably closed conduit system including at least one pump and
<br /> a series of filters 22, but though at least one filter, in the at least one filter,wherein said pump is capable of
<br /> closed conduit system 20 comprises receiving the flow of pumping water through said closed fluid circuit at a
<br /> water outside of the water supply system between the first 5o flow rate sufficient to flush particulates and sediment
<br /> point,hydrant 40A,and the second point,hydrant 4013,and from the first point of said isolated section for
<br /> filtering out all of the undesirable matter from the flow of removal by said at least one filter, and thereafter,
<br /> water outside of the water supply system so that the water returning all of said water to the second point of said
<br /> supply system water main 30 is cleaned of all the undesir- isolated section,substantially free of particulates and
<br /> able matter between the second point,hydrant 40B,and the 55 sediment.
<br /> first point,hydrant 40A,in the water supply system and all 2.The system of claim 1 further comprising a means of
<br /> of the flow of water taken from the water supply system is inspecting the quality of the flow of water in the closed
<br /> returned to the water supply system free of all the undesir- conduit system,
<br /> able matter after filtering the water. 3.The system of claim 2 wherein the means of inspecting
<br /> A step of inspecting the flow of water in the closed 60 the quality of the flow of water in the closed conduit system
<br /> conduit system 20 by a means of visually inspecting the comprises at least one portion of the closed conduit system
<br /> quality of the flow of water in the closed conduit system comprising a means for viewing and visually inspecting the
<br /> comprises visually inspecting the flow of water through a flow of water.
<br /> check valve and a section of clear tube 25A where the water 4.The system of claim 3 wherein the means for viewing
<br /> flow enters the closed conduit system 20 and, if desired, 65 and visually inspecting the flow of water comprises a check
<br /> again through another check valve and section of clear tube valve and a section of clear tube to visually inspect the flow
<br /> 2513 where the water flow exits the filters 22. of water.
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