3 Savings - SEKISUI SPR, Americas

3 Savings Spiral Wound Liners Offer Pipe Rehab Projects SEKISUI SPRAmericas, LLC www.sekisuispra.com sekisui.info@sekisui-spr.com

Contents 01 LiveFlowPipeLining 02 AboveGround/ConstructionFootprint 03 InstallationSpeed

One exceptional aspect of Spiral Wound Lining is the ability to install a liner in live flow. Flow passes through the materials and winding equipment, causing no harm to the rehabilitation process. Additionally, no chemicals/cure times negate the concern for any flow contamination. Typically, Spiral Wound operates inside pipes with up to 25% to 30% low-velocity flow. The smooth PVC surface that boosts the hydraulic nature of our liners becomes a safety concern for workers when flow surpasses 30%. Material and equipment can even be left inside the pipeline during extremely high flow days when work is not permitted. Moreover, the natural debris that comes along with flow does not harm the installation equipment. How Does this Save Money? If you’ve worked on pipe rehab projects, you know bypass pumping can be expensive, often costing between 15% - 20% (or higher) of the total bid. Spiral Wound lessens, and in many cases eliminates, costs associated with flow management. Bypass Pumping Cost as a Percentage of Total Bid 15% 19% Download Paper Statistics Drawn from Of the total bid cost for 40 projects analyzed SEKISUI SPRAmericas, LLC Of total bid cost for projects with diameters 20” ExaminingtheCostsof BypassPumpingfor PipelineRehabilitation www.sekisuispra.com sekisui.info@sekisui-spr.com Live Flow Pipe Lining 1 Live Flow Pipe Lining

2 Spiral Wound is truly a minimalist technology. The primary work and machinery are located underground. The main components sitting above ground depend on the scope of the project. A PVC spool loaded onto a truck (left picture) or multiple spools accompanied by a forklift (right picture) are the typical setup. The number of spools varies with the size of the project. A hydraulic power unit is also required to power the winding machine and unspool the PVC, however, these are small and easy to maneuver. Since the machinery is assembled inside the pipe, the only material passing through the access during installation is a strip of PVC, which is between 4” - 5” wide. This allows for Spiral Wound to reach nearly all conventional access chambers while maintaining 100% trenchless integrity. In addition to minimal equipment impact, Spiral Wound allows for a smaller amount of workers onsite. Typically, the crew numbers around 5 to 6 workers for a pipe rehab job, with larger/multiple crews for bigger projects. The lack of heavy-duty machinery and equipment permits a leaner, more efficient installation team. How Does this Save Money? Certain trenchless lining methods need larger access for rehab and require pit excavation near the pipe entrance. Excavation and larger crew sizes add dollars to the bid. Excavation and backfill alone can reach 100’s of thousands of dollars for certain trenchless methods. They also increase the above ground impact which may disrupt traffic and the community. Spiral Wound eliminates excavation costs, minimizes crew sizes and keeps traffic control low. SEKISUI SPRAmericas, LLC www.sekisuispra.com sekisui.info@sekisui-spr.com Construction Footprint Above Ground/Construction Footprint

With no bypass pumping, pit excavation, cure times and minimal setup, Spiral Wound provides contractor’s a time-saving tool. The mechanical nature of PVC lining provides these efficiencies. For instance, the winding process allows starts/stops at any moment. This feature alone helps avoid costly errors and provides flexibility on the construction site. Spiral Wound’s lining speed per linear foot is a contributing factor to cost efficiency. Smaller diameter projects see upwards of 600 LF - 700 LF of renewed pipe in a single workday. Additionally, SPR EX and SPR TF are grout-less, tight-fitting solutions. Pipe lining occurs in close contact with the host pipe with no additional steps to fill the gap between the liner and pipe wall. In short, once lining, end-sealing and lateral reinstatement (if applicable) are complete, the pipeline is fully rehabilitated. How Does this Save Money? Fewer steps mean less time and money used on the pipe rehab project. Spiral Wound takes away a number of variables typically associated with trenchless pipe lining. This ultimately provides municipalities and contractors one of the most cost-effective tools for pipe rehabilitation. 600 - 700 LF per day Watch the Spiral Wound Lining process See Live Installations For Smaller Diameter Spiral Wound Jobs SEKISUI SPRAmericas, LLC www.sekisuispra.com sekisui.info@sekisui-spr.com Installation Speed 3 Installation Speed

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Spiral Wound's lining speed per linear foot is a contributing factor to cost efficiency. Smaller diameter projects see upwards of 600 LF - 700 LF of renewed pipe in a sin-gle workday. Additionally, SPR EX and SPR TF are grout-less, tight-fitting solu-tions. Pipe lining occurs in close contact with the host pipe with no additional steps