Install Instructions

Professional Plumbing Installation Guide
27
Section 4
Water Service Phase
Uponor AquaPEX tubing meets the
requirements of the following standard:
• ANSI/AWWA Standard C904-06,
Crosslinked Polyethylene (PEX)
1
⁄2 inch
(12mm) through 3 inches (76mm) for
Water Service
Please refer to the ANSI/AWWA Standard
for information regarding the selection,
use and proper application of PEX tubing
in water service.
Handling and Repairs
Although Uponor AquaPEX tubing is
highly resistant to kinking and abrasion,
it is important to handle with care while
installing the tubing to prevent damage
and possible failure. If damage occurs
during installation, cut out and repair the
area before backfilling.
To reform kinked tubing, refer to Section
2: Reforming Kinked Uponor AquaPEX
Tubing on page 9. If damaged beyond
the thermal memory capacity of the
tubing, use a ProPEX repair coupling that
is suitable for direct burial.
Note: Do not reuse or reclaim EP fittings.
Trench Bottom
Preparation
For a successful installation, the
supporting soil must provide a stable and
continuous support for the tubing.
Good Soil Conditions
If the trench cut is relatively smooth,
install the tubing directly on the prepared
bottom. The bottom must be flat with no
hollows, lumps or rocks.
Minimum 24" for
Vehicular Traffic
AquaPEX Tubing
Excavation
Level
Desired Tubing
Elevation
Figure 4-1: Trench Example of Good Surrounding Soil