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Methods and systems for cleaning, coating and sealing leaks in existing pipes, in a single operation. A piping system can be cleaned in one pass by dry particulates forced and pulled by air throughout the piping system by a generator and a vacuum. Pipes can be protected from water corrosion, erosion

Methods and systems for cleaning, coating and sealing leaks in existing pipes, in a single operation. A piping system can be cleaned in one pass by dry particulates forced and pulled by air throughout the piping system by a generator and a vacuum. Pipes can be protected from water corrosion, erosion and electrolysis, extending the life of pipes such as copper, steel, lead, brass, cast iron piping and composite materials. Coatings can be applied to pipes having diameters up to approximately 6″. Leak sealants of at least approximately 4 mils thick can cover insides of pipes, and can include novel mixtures of fillers and epoxy materials, and viscosity levels. A positive pressure can be maintained within the pipes during applications. Piping systems can be returned to service within approximately 96 hours.

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We claim: 1. A method of applying a barrier coating leak sealant to pipes, comprising the steps of: (a) identifying problems with a building piping system; (b) planning and setting up onsite labor and connections to cleaning and sealing equipment for the piping system; (c) air drying interior walls

We claim: 1. A method of applying a barrier coating leak sealant to pipes, comprising the steps of: (a) identifying problems with a building piping system; (b) planning and setting up onsite labor and connections to cleaning and sealing equipment for the piping system; (c) air drying interior walls of the piping system; (d) profiling the interior walls of the dried piping system; (e) applying the barrier coating leak sealant to the interior walls of the profiled piping system; and (f) evaluating the interior coated walls and leak integrity of the barrier coated piping system. 2. The method of claim 1, wherein the identifying step (a) includes the steps of: interviewing persons to determine the problems; evaluating local and onsite water qualities to determine hardness and aggressive qualities; determining damage to wall thickness of individual piping and piping integrity; identifying and evaluating leaks in the piping system; and developing a corrosion leak repair proposal for the piping system. 3. The method of claim 2, wherein the planning and setting up step (b) includes the steps of: completing contract development for proposal; commencing project planning for proposal; delivering equipment and supplies to worksite; mechanically isolating the piping system; and setting up the equipment at the worksite. 4. The method of claim 1 wherein the sir drying step (c) includes the steps of: mapping the piping system; isolating the piping system; connecting the piping system to the equipment required for heating and drying the piping system; draining water from the isolated piping system; flushing residual water from the isolated piping system with compressed air; heating and drying the isolated piping system; and inspecting the isolated piping system to assure dry condition. 5. The method of claim 1, wherein the step (d) of profiling includes the steps of: introducing dry abrasive agent into the piping system by compressed air from a source outside of the piping system; and air flushing the piping system to remove any remaining residuals. 6. The method of claim 1, wherein the step (e) of applying the barrier coating leak sealant includes the steps of: heating the piping system; checking the piping system for leaks; preparing and metering the barrier coating leak sealant to selected values; injecting the barrier coating leak sealant into the piping system with compressed air; coating interior walls to achieve a coating layer of at least approximately 4 mils and sealing leaks up to approximately 125 mils in diameter; injecting compressed air into the piping system to set the coating leak sealant; curing the coating leak sealant in the piping system. 7. The method of claim 1, wherein the step (f) of evaluating includes the steps of: removing the connections to the equipment; examining pipe segments to assure coating sealing standards; re-confirming valves and the pipe segments in the piping system support air flow; re-installing original valves, fittings, and fixtures of the piping system; reconnecting water supply to the piping system; completing checks of the reconnected piping system to determine integrity; completing a water flush of the connected piping system; evaluating water flow and quality in the reconnected piping system; and documenting piping layout and completing pipe labeling. 8. The method of claim 1, further comprising the step of: providing piping for the piping system having a diameter of approximately ⅜ inch up to approximately 6 inches. 9. A method of mixing and applying a corrosion barrier leak sealant coating to an existing piping system in a multi-story building, comprising the steps of: isolating the pipes in the existing multi-story piping system; drying the piping system; cleaning the pipes with a nonliquid agent; mixing an epoxy material to form a barrier coating leak sealant; applying the barrier coating leak sealant to interior walls of the pipes without dismantling all of the piping system, wherein the barrier leak sealant provides an interior barrier for protecting the interior walls of the pipes and sealing leaks up to approximately 125 mils in diameter; and restoring the pipes of the existing piping system to service within approximately twenty four to approximately ninety six hours. 10. The method of claim 9, wherein the step of applying includes the steps of: inserting the barrier coating leak sealant into the pipes having diameters of approximately ⅜ of an inch to approximately 6 inches. 11. The method of claim 10, further comprising the step of: providing a layer of the barrier coating leak sealant of at least approximately 4 mils. 12. A method of applying a barrier coating leak sealant to pipes, comprising the steps of: (a) drying the interior walls of the pipes in a building piping system; (b) cleaning the interior walls of the dried pipes with dry particulates emanating from a fixed source located outside the piping system; and (c) coating the interior walls of the cleaned piping system with a barrier coating leak sealant. 13. The method of claim 12, wherein the drying step (a) includes the steps of: mapping the piping system; isolating sections of the piping system; connecting the piping system to equipment required for heating and drying the piping system; draining water from the piping system; flushing residual water from the piping system with compressed air; drying the piping system; and inspecting the piping system to assure dry condition. 14. The method of claim 12, wherein the step (b) of cleaning includes the steps of: introducing a dry abrasive agent into the piping system by compressed air; inspecting the piping system to assure cleaning and profiling standards; and air flushing the piping system to remove any remaining residuals. 15. The method of claim 12, wherein the step (c) of the coating includes the step of: heating the piping system; checking the piping system for leaks; preparing and metering the barrier coating leak sealant to selected values; injecting the barrier coating sealant into the piping system with compressed air; coating interior walls of the piping system to achieve a coating layer of at least approximately 4 mils, sealing leaks up to approximately 125 mils in diameter; injecting compressed air into the piping system to set the coating leak sealant; and curing the coating leak sealant in the piping system. 16. The method of claim 12, wherein the cleaning step (b) includes the step of: cleaning all the interior walls of the pipes in the building piping system within a single operation. 17. The method of claim 12, wherein the coating step (c) includes the step of: applying the barrier coating leak sealant to the interior walls of the pipes in the building piping system during the same operation. 18. A method of applying a barrier coating leak sealant to pipes to fix openings and cracks in the pipes, comprising the steps of: mixing an epoxy material to form a barrier coating leak sealant having a viscosity range of approximately 1,200 cps to approximately 60,000 cps at room temperature; applying the barrier coating leak sealant to interior walls of the pipes without dismantling all of the piping system, wherein the barrier coating leak sealant provides an interior barrier for protecting the interior walls of the pipes and sealing leak openings up to approximately 125 mils in diameter; and restoring the pipes of the existing piping system to service within approximately twenty four to approximately ninety six hours.