CIPP is a resin-saturated felt tube or robust sleeve composed of polyester, reinforced fiberglass or Hybrid mix of materials, that is inverted or pulled into aging and damaged sewer pipes. Typically, the CIPP lining tube is inserted into and through the damaged pipe utilizing air or water pressure. Hot water or steam is then used to cure the resin impregnated tube within the existing sewer which then forms a solid, structural component with a 100-year life.
Precision Monitoring, Accuracy and Response
CIPP installation allows service laterals to be restored internally through the use of robotically controlled cutting devices (or by hand for significantly large sewer pipes), and ultimately inspected via closed-circuit television.
Stringent Guidelines and Parameters
All CIPP liners are designed in accordance with ASTM-F1216, the ASTM International Standard Practice for Rehabilitation of Existing Pipelines and Conduits by the Inversion and Curing of a Resin-Impregnated Tube. This international benchmark takes a series of existing pipe parameters into consideration in order to determine the proper thickness of the liner to ensure its ultimate required performance.
And Then There’s the CWW Standard
At CWW we design our CIPP liners based on our customers’ requirements and in accordance with specific site conditions. As a CWW quality standard – unless specified otherwise – all our CIPP liners are designed for fully deteriorated pipe conditions based on applicable Municipal and Provincial standard specifications. We offer quality CIPP liners engineered to OPSS 460 in Ontario and BNQ 1809-400 in Quebec. When clients such as Municipalities, Industrial and Commercial Asset Managers provide us with special specifications we meet or exceed them. We take the same pride in offering engineered designs and methodologies to clients such as Homeowners and Business owners who may not have a full knowledge of existing standards. This proactive and vigilant practice provides a dependable solution for any potential damage to a host sewer pipe. Even if a pipe begins to show signs of severe deterioration or totally disintegrates over time, our CIPP liners will structurally withstand defined loads, and operate under defined conditions for a minimum 50-year design and minimum 100-year service life.
CWW recommends structural liners for the following sewer problems:
- structural defects
- flow capacity
- biological and chemical corrosion
- excessive inflow and infiltration
- increased cost in processing unnecessary groundwater
- reduction in expansion capacity of the sewage treatment plant
In Summary, CIPP Benefits are:
- long-lasting and dependable structural rehabilitation
- little to no site disruption or reinstatement
- client’s business continues to move forward – business as usual – revenue uninterrupted
- a fiscally responsible/cost-effective solution that eclipses traditional dig-and-replace methods
- environmentally responsible sewer pipeline rehabilitation methodology
