Cured-In-Place-Pipe, (CIPP), is an approved ASTM method and preferred method to rehabilitating cracked, broken and failed sanitary or storm sewer pipes. The process can be used to rehabilitate virtually any type of pipe including; Clay, Cast Iron, Steel, Orangeburg, PVC, ABS, HDPE, Concrete Pipe, tile, or Corrugated Pipe. CIPP liners are designed to be independently structurally strong, not relying on the host pipe for any structural strength contribution. CIPP liners can bridge offset pipe joints or gaps where sections of pipe are missing and stretch to fit irregular pipe sections.

Installation of a cured in place pipe liner results in a new ASTM certified stand-alone pipe within the existing deteriorated host pipe. The CIPP liner resin does not bound or is glued to the host pipe material. Instead, a mechanical lock is formed between the CIPP liner and the host pipe to prevent liner movement or shifting. Flexible liner impregnated with resin is pressed into cracks, joints, lateral connection flares, existing pipe curvatures, and pipe end flares to lock the liner into place. The liner fills the cracked, open portions of the pipe but does not over expand or balloon through the missing portion of pipe. Once hardened (cured), it forms a continuous, tight fitting, corrosion resistant and structural “new” pipe-within-a-pipe. With a 50 to 100-year design life, it will virtually never deteriorate under normal operational and environmental conditions.

A flexible “Dry Tube” manufactured from felt layers is used as the conduit. The finished tubes are coated with a permanently-bonded, continuous layer of polypropylene or polyethylene which is resistant to hydrolysis and chemical attack. In addition to having a high-quality felt tube, a pipe rehabilitation project requires the use of resins specifically developed and tested for project specific operating environments.

The cost savings to CIPP repair has both short and long-term advantages. The streamlined installation process reduces the cost of labor associated with traditional pipe repair. And, without the labor costs of digging, CIPP repair is much more inexpensive. Additionally, paving and restorative landscaping is usually needed after digging. This is one of the most expensive parts of pipe repair when you use excavation methods.

With CIPP repair, any pipe repair needed can be fixed. Age deterioration, root or plant intrusion, cracking and fracturing, corrosion, and damage from a faulty installation are the leading causes of pipe damage. This leaves a huge range of issues that could need to be repaired. CIPP has the advantage of being able to repair virtually any kind of pipe. Multiple angles and bends don’t hinder effectiveness. And, even large buildings, municipal pipe systems, and complex sewer systems benefit from CIPP repair.

CIPP repair eliminates damage to floors, structures, sidewalks, interior walls, landscape, city streets and interstate highways. Not only does it make the area around the construction zone safer, it keeps citizens and the workers safe as well. Since CIPP repair is done completely underground, without excavation or large scale pipe digging, it does not have the same risk associated with traditional pipe repair. And, it also serves to protect those in the area from asbestos, mold exposure, and exposure to harmful natural elements.

The dry tube is manufactured to the specified project thickness and length. The dry tube is then impregnated with the “project specific” resin system chosen by the contractor. The flexible felt tube, now impregnated with resin, is then inserted into the host pipe. Air or hydrostatic pressure is introduced into the liner causing an “inversion” to take place. The CIPP liner inverts the entire length of the host pipe turning itself inside out so the uncoated, resin filled side of the liner is pressed up against the host pipe filling cracks, voids, gaps and breaches. The liner is then “cured” using an ambient, steam, or hot water method causing the lining tube and resin to harden. Once cured, the liner forms a structurally sound new pipe-within-a-pipe.

CIPP construction generally requires access to both ends of the line segment slated for restoration. The CIPP liner is inserted into the upstream end of the host pipe, “A Station”, and is inverted the length of the host pipe to the downstream end exiting the pipe at the “B Station”. These access points are generally existing openings such as manholes, basins, vaults, cleanouts, outfalls, spool ends, etc.

Yes. USP Epoxy Methods & Materials are comprised of a 100% solids epoxy coating meeting the requirements of NSF/ANSI 61-5, and ASTM Standards for epoxy coating systems. All materials are certified to NSF/ANSI 372 conforming to the requirements for “Lead Free” plumbing products, and tested to ASTM D638-14, ASTM D695-15, ASTM D790-15e2, ASTM D790-14e2, and ASTM D4541 

Virtually any type of pipe may be lined with CIPP; vertical vent and vertical waste stacks, roof drains, chiller lines, underground storm and sewer lines, transmission lines, fire suppression lines, and even underground tunnel and conduit systems.

The rise of technology has made it possible to create a range of trenchless options for CIPP repair. Manhole to manhole lining serves as a simpler way to fix municipal pipe systems. Basin to basin lining as a means of culvert and storm system repair. From roof vent to first floor sanitary main for high-rise sanitary, vent and roof drain risers. Even smaller pipe damage, such as corrosion or cracking in one area, benefits from CIPP through sectional repair. 

Yes. The process of CIPP restoration is completed in a matter of hours or days instead of over a longer period. This noninvasive alternative to traditional pipe repair leads to less overhead, lower costs, and a more efficient way to solve the problem without creating chaos. 

Vertical stacks (roof drains, sanitary, vent) are generally accessed from the rooftop. First the stacks are cleaned and televised in preparation for CIPP. Once prepared, the CIPP liner is installed into the “host pipe” and inverted down through the length of the vertical stack to the basement or bottom floor level. This creates a full length, fully structural, onepiece pipe-within-a-pipe. Once cured and hardened the lateral service connections are reopened and placed back into service with the use of a robotic cutter. Most stacks are CIPP lined and back in service within the same day and because all construction activities take place from the rooftop there is very little disruption.

Depending on conditions and pipe diameter CIPP can be installed in continuous lengths up to 2,500’ linear feet. However, lengths of 500’ to 800’ are the general target range.

Yes, CIPP materials and resins are AWWA/ANSI/NSF61 approved for potable water use. A CIPP system would be designed to meet the pressure specifications of the system.

Yes, CIPP is designed to line through offset joints and bends of up to 90 degrees in the host pipe.

Following the installation, curing and hardening of the CIPP system, a remote-controlled mechanical cutter is inserted into the newly lined host pipe. All lateral tie-ins are reopened and service reinstated immediately following installation.

CIPP installation time will vary based on pipe length, diameter, liner design thickness, and outside conditions. Generally, mid-size pipes (12” to 36” diameter) are back in service within 12 hours. Larger diameters are generally back in service with 12 to 24 hours.

CIPP liners are designed to be independently structurally strong, not relying on the host pipe for any structural strength contribution. CIPP is noninvasive, designed to fill voids, cracks and breaches in the host pipe, and is a continuous, “one piece” lining system. CIPP has a minimum design life of 50 years and is resistant to chemicals typically found in domestic sewage.

The host pipe must be cleaned (to NASSCO Standards) including the removal of deposits settled and all internal debris from the pipe line that will interfere with the installation and the final product delivery of the CIPP. Pre-cleaning is generally a phase of CIPP installation.

1. CIPP Methods & Materials are measured and tested to ASTM D790, ASTM D5813, ASTM F1743, under ASTM F-1216 Standard Practice for Rehabilitation of Existing Pipelines and Conduits by the Inversion and Curing of a Resin-Impregnated Tube.immediately following installation.

Yes, CIPP can be designed to meet internal operating pressures in excess of 300psi depending on pipe diameter. Higher operating pressures are met with the use of specialized resins and/or the incorporation of glass layers to the felted tube.

Yes, CIPP can be designed to meet internal operating temperatures in excess of 230°f/112°c.

Yes, CIPP can be installed to existing vertical linen and trash chutes in building heights up to 40 stories. The one-piece CIPP liner is generally installed from the ground-up through the existing chute system while winching the liner upward from the rooftop.

Epoxy Lining is an approved American Water Works Association (AWWA) M28 lining method used to rehabilitate water and sewer mains. Prolonging the life expectancy of the existing pipe, epoxy lining acts as a corrosion barrier while filling pinhole leaks and minor cracks within the host pipe.

Epoxy Lining can be used to rehabilitate virtually any type of pipe including damaged concrete, PVC, fiberglass, clay, cast iron and ductile iron pipelines and field uses such as vertical vent pipes, sanitary waste, roof drains, chiller lines, underground storm and sewer lines, transmission lines, fire suppression lines, and even underground tunnel and conduit systems.

Yes, Our DC1000E Epoxy Lining System is AWWA/ANSI/NSF61 approved for potable water use and certified to NSF/ANSI 372 conforming to the requirements for “Lead Free” plumbing products.

The USP Epoxy System is designed for an estimated service life of 30 years or greater.

With access to one end of the host pipe a brush casting system is inserted which applies an epoxy coating to the internal surfaces of the host pipe. Access points are generally existing openings such as manholes, basins, vaults, cleanouts, outfalls, spool ends, etc.

Epoxy installation time will vary based on access, condition, pipe diameter, and external weather and temperature conditions. Generally, pipes are out of service for 8-hours with flow restored to lined pipe within 4-hours of coating.

Yes, Access can be gained by excavating one or both ends of the pipe, entering through a clean-out or fixture line, or by removing spool pieces or valves.

Yes, the USP Epoxy System is designed to line through directional changes, turns and bends in the host pipe of up to 90 degrees. Lines with numerous elevation changes, drops and or bends are appraised to devise an installation plan to address the pipe geometry.  

Vertical stacks (roof drains, sanitary risers, vent risers) are generally accessed from the rooftop. First the stacks are cleaned and televised in preparation for Epoxy. Once prepared, the Epoxy coating system is installed into the “host pipe” traveling down through the length of the vertical stack to the basement or bottom floor level. The coating machine then reverses direction travelling upward while applying the Epoxy coating to the internal pipe surfaces. Most stacks are Epoxy lined and back in service within the same day. Because all construction activities take place from the rooftop there is very little disruption.

Depending on conditions and pipe diameter Epoxy coating can be applied in continuous lengths up to 150’ linear feet from a single access point and 300’ with access from either end.

The host pipe must be cleaned (to NASSCO Standards) including the removal of deposits settled and all internal debris from the pipe line that will interfere with the installation and the final product delivery of the Epoxy. Acceptable methods of surface preparation include high pressure water/air, sand blast, chain flail, or sanding side grinding panel.

USP Epoxy Methods & Materials are comprised of a 100% solids epoxy coating meeting the requirements of NSF/ANSI 61-5, and ASTM Standards for epoxy coating systems. All materials are certified to NSF/ANSI 372 conforming to the requirements for “Lead Free” plumbing products, and tested to ASTM D638-14, ASTM D695-15, ASTM D790-15e2, ASTM D790-14e2, and ASTM D4541.

Yes, Epoxy coating can be designed to meet internal operating pressures in excess of 200psi depending on pipe diameter.  

Yes, Epoxy can be designed to meet internal operating temperatures in excess of 180°f/82°c.