Inversion Liner
Unlike the light ray material, the inversion liner is a bit trickier. When installing an inversion liner all the cleaning is done first as stated above, but this must be done to the entire sewer line. The liner must be measured to perfection with the use of a sewer camera so that the lining material doesn’t go too far into the city and cover up another sewage tap at another property or too far to the end of a line where it wrinkles the remainder of the liner.
The liner is then laid out and cut to the exact length. At this point all calculations according to the length of the liner and the Cal-tube to mix the two-part epoxy resin at an exact amount as you cannot have too much waste or too little as it will not adhere. When all resin is mixed at this point you have 45 minutes to begin the curing process with the hot water.
Pre-mixed 2-part epoxy will be poured into the fiberglass liner and spread evenly in the liner. All precut liners will now be entered into the inversion liner equipment and forced with compressed air which will feed the fiberglass liner into the existing sewage piping system. The Cal-tube, which will be used to hold the 150-degree water used for curing the hot water inversion liner, will be inserted into the sewage piping system.
Following all of that, the next step will be to introduce the water into the Cal-tube at normal temperature and burp all the air out of the line by running through the boiler system. Once all air is burped from the liner then the water can begin to get to temperatures of 150 degrees. After water has reached the temperature of 150 degrees at this point your timer can start and there is now a 45-minute cure time maintaining that temperature.
After 45 minutes is up the water can now be cooled down to normal temperature by turning off the boiler and inserting cold water slowly into the liner. Once cooled all Cal-tube can be removed and the liner is inspected with a sewer camera. If any re-instatements are needed from other lines entering the main sewage line, we auger a hole through the liner to allow these secondary lines to flow into the main sewage line as normal. All plumbing fixtures are then tested to ensure no incoming lines were missed.
Key Takeaway
The old adage, “Measure twice, cut once” applies here. As you can see, this process is very complicated and requires a team of experts and extensive equipment to ensure that your pipes are properly functioning and won’t require future plumbing endeavors. Thus, saving you headaches and money. Fortunately, Plumb Pro+ has an experienced team of certified trenchless pipe repair installation experts and licensed plumbers who have the experience and education to plan, advise, and facilitate this complex process.
