Planning a Fast Pipe Lining CIPP Project
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Careful planning is vital for each individual CIPP liner installation. Accurate information must be collected for every CIPP installation, shortcuts are not acceptable. Site visits to every installation site is critical to obtain accurate information. Installation errors such as the wrong diameter sizes (too big or small) or wrong lengths (too short) have occurred, but all can be traced to poor field data collection. Over-looked details can result in unforeseen project costs that can be the responsibility of the installation contractor.
Fast Pipe Lining provides customers with project planning assistance including helpful detailed checklists designed to remind installers of project requirements. The first step is to know the location, know the soil in play, inspect the pipe, know the pipe measurements - width and diameter, as this is the first process that must be completed in before ordering a CIPP liner. The key to every CIPP lining is precise project planning that must include a bypass pumping system and a traffic control plan.
Note that the Fast Pipe Lining Calculator is based upon data obtained from the each individual installation site. This is critical data required to design a CIPP liner that when installed will conform to ASTM Standards. Data from the Fast Pipe Lining Calculator is also used for ordering & manufacture of the CIPP liner. Data entered into the Calculator is the ultimate responsibility of the installation contractor.
For every CIPP liner installation, the following accurate field data needs to be collected and prepared:
- Clean the pipe to be lined. Initial cleaning should remove all root infiltration, dirt, soap & grease deposits.
- Perform a CCTV inspection of the pipe to be lined. Inspection should note any pipe irregularities including missing pipe sections, intruding lateral connections, location of each lateral connection, size transitions. Inspection should have precise pipe length measurement. Do not rely on previous CCTV inspections for this information. Perform a surface measurement of the pipe from manhole to manhole to confirm CCTV distance measurements.
- Measure street(s) width from curb to curb. Obtain manhole measurements including ring diameter & depth from ring from surface to bottom of invert. This must be performed at both the upstream & downstream manholes.
- Perform a confined space entry to obtain exact pipe diameter measurements at both upstream & downstream manholes. Do not estimate pipe diameter size from the surface or rely on any type of blueprints or specifications for pipe diameter information.
- Review the area for information required for setting up a bypass pumping system.
- Using a digital camera, take pictures of the entire work site area from all angles. Digital pictures are a valuable reference when planning any CIPP project.
- Review the area for traffic flow & patterns.
- Locate the closest fire hydrant for a possible water source. Check with the local water authority to confirm possible use.
- Prepare a bypass pumping plan. In most situations, the bypass pumping system will extend beyond the area where the CIPP pipe liner is to be installed. Bypass pumping systems that cross a street may require drive over ramps. Careful detail to the bypass plan must be followed for a successful installation. Bypass pumping systems can entail more work effort & costs that the actual CIPP liner installation. Bypass pumping systems must be in place & tested before the installation of a CIPP liner can begin.
- Prepare a traffic control plan for both the installation of a CIPP liner and the required bypass pumping system. Maintenance of traffic flow is a critical part of any CIPP liner installation. Traffic control signs & arrow light boards may be required to confirm to local/state safety requirements. Flag persons or police safety details can be required to conform with safety requirements.
- If project requires multiple CIPP liner installations, review to see if two or more liners can be installed from one installation site. Installing multiple CIPP liner segments at one time can reduce overall installation costs. For multiple installations, installers must consider effects on bypass pumping systems and traffic control plans. Lateral reinstatement time will also be increased that may not be acceptable to local residents or businesses.
Fast Pipe Lining can assist any CIPP installation contractor in developing CIPP liner installation projects including the preparation of project work submittals.