Where life interacts with infrastructure.
Nu Flow Prevents Disruptive Pipe Repairs in Baltimore High-Rise Failing potable pipes inside of your multi-unit residential building is embarrassing enough - but to tear apart the residents’ walls and floors in order to repair the pipes is a nightmare. Forget about the messy, expensive and timeconsuming repairs. Nu Flow’s unique non-invasive pipe lining process uses existing access points to clean and coat the pipes without having to get inside walls or floors. Project: Rehabilitate a failing cold water main in-place using Nu Line. Site: An apartment building with 8 floors of luxury apartment units, located near Baltimore, Maryland’s lively Inner Harbor and the University of Maryland’s medical campus. The building was built in the mid-1990s. System: More than 1,000 feet of galvanized steel cold water pipes with diameters of 2" to 4". This cold water main line runs from the pump room in the basement, up to the 14th floors, with branch lines along the 12th and 14th floors. The pipes are either hidden behind drywall or in a concrete chase. Problem: The 15-year-old water lines experienced extensive corrosion and rust, which turned the cold water yellow and stained the residents’ clothes while doing laundry. Since the pipes are hidden within the walls and floors of the units, a traditional pipe repair was not ideal. Circumvention: If the customer had chosen a traditional repipe instead of Nu Flow’s in-place solution, the cold water main would have been torn out from the residential building’s walls and floors. This would have caused a huge inconvenience to the residents. The walls, floors and concrete chase would have been ripped apart, the failing pipes would have been carried out and new pipe would have been laid in its place, only to experience the same inevitable failures within 10 to 20 years.
Nu Flow rehabilitated these severely corroded cold water pipes using a patented, blown-in process, which minimized disruption to residents.
Solution: Nu Line was used to coat the cold water main in-place, so there was minimal disruption to the residents. First, the pipes were sandblasted to clear them of corrosion and rust. Then, the epoxy was pushed through the pipes using clean, compressed air. This formed an even epoxy coating throughout the cold water main and its branches. The epoxy cured to form a protective barrier coating that will prevent corrosion, rust, pinhole leaks and other failures from occurring. The lobby, as well as residents’ hallways and floors were preserved, thanks to the Nu Line process. Nu Flow’s non-invasive pipe lining solution is the ideal repair method for failing potable systems inside all types of multi-unit residential buildings.
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