Before Starting Installation; Proper Installation; Tools, Pipe, Fittings, And Other Materials - US Water Systems FlexxHD Series Manual

Before Starting Installation

Proper Installation

This water softening system must be properly installed and located in accordance with
the Installation Instructions before it is used or the warranty will be void.
• Do not Install or store where it will be
exposed to temperatures below freezing
or exposed to any type of weather. Water
freezing in the system will break it. Do
not attempt to treat water over 100°F.
• Do not install in direct sunlight. Exces-
sive sun or heat may cause distortion or
other damage to non-metallic parts.
• Properly ground to conform with all gov-
erning codes and ordinances.
• Use only lead-free solder and flux for all
sweat-solder connections as required by
state and federal codes.
• Maximum allowable inlet water pressure
is 100 psi. If daytime pressure is over 80
psi, night time pressure may exceed the

Tools, Pipe, Fittings, and Other Materials

• Channel Locks
• Screwdriver
• Teflon Tape
• Razor Knife
• Two adjustable wrenches
• Additional tools may be required if modifi-
cation to home plumbing is required.
• To maintain full valve flow, be sure the
plumbing size matches the size of the
valve. The outlet pipe should be the
same size or larger than the water supply
pipe.
• Use copper, brass, or PEX pipe and fit-
tings. Some codes may also allow PVC
Plastic pipe.
Need help? 1.800.390.5936
maximum. Use a pressure reducing valve
(PRV) to reduce the pressure.
• Softener resins may degrade in the pres-
ence of chlorine or chloramines above 2
ppm. If the feed water has chlorine or
chloramines in excess of this amount, it
could reduce the life of the resin. In these
conditions, a whole house carbon filter
system with a chlorine reducing media
is recommended. Contact US Water Sys-
tems for chlorine and chloramine removal
equipment.
• Warning: Discard all unused parts and
packaging material after installation.
Small parts remaining after the installa-
tion could be a choke hazard.
• ALWAYS install the included bypass
valve or install a 3 shut-off valve hard
piped bypass. Bypass valves allow the
water to be turned off to the softener but
can still provide water to the house for
water use during repairs or service.
• 5/8" OD, 1/2" ID drain line is needed for
the valve drain.
• A length of 5/8" OD drain line tubing is
needed for the brine tank over flow fitting
(optional).
• Extra Course Grade or Crystal Solar Salt
(99.8% pure) water softener salt is nee-
ded to fill the brine tank.
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