The manufacturer will test the raw materials and liner materials at various
stages of manufacturing on every liner, including taking samples of every
finished liner and conducting test for e-modulus, tensile, wall thickness
and porosity.
Fiberglass materials must be “direct sized” to enhance the fiberglass/resin
bond. Certification of this coating and its compatibility with the resin
system used is required.
The Tube shall be constructed to withstand installation pressures and have
sufficient strength to bridge missing pipe while meeting or exceeding the
Design wall thickness at all pipe locations during installation conditions
and pressures.
PART 3 INSTALLATION
3.01. GENERAL
Installation of the impregnated liner may be by inversion, or pull in place insertion as
specified by the manufacturer. All equipment, labor materials, and processes required to
complete the work must be ready on-site before installation begins.
3.02 PRE-INSTALLATION
Prior to installation of the liner, the following activities are required:
a. Receipt and approval of pre-installation submittals.
b. Verification of line condition and any obstructions by video inspection.
c. Verification of existing taps in service by flowing water, dye test, or visually with
a pan and tilt head camera or other means.
d. Cleaning of line (recorded on video tape).
e. Root cutting
f. Construct and complete any and all point repairs deemed necessary shall receive
Engineer’s approval before reworking the lines and the liner is installed.
Prior to installation, the diversion pumping system, including back-up pumps, shall be
tested and running.
3.03 SET-UP
The installation area/equipment shall be securely protected and all damaged yards,
driveways, walks, etc., shall be repaired at no cost to the Owner. Plastic sheeting will be
used to cover the work area around the manholes and/or access points to eliminate the
opportunity of environmental contamination to the above-ground setting during the
installation process.
2019 CIPP Lining Project CIPP Lining of Existing Sewers (Ultraviolet)
Nashua, NH 02651-9
