Install Instructions

Using CPVC solvent cement, glue on
two CPVC × PEX Adapters. Wipe off
excess glue.
YOU’LL NEED
CPVC Cement CPVC Primer
Cut out roughly 10″ to 12″ of CPVC. Let
excess water drain from the system
and remove any burrs from cut ends.
YOU’LL NEED
Plastic tube cutting tool
Tape measure
Turn off water service to the entire house. If
you have a valve installed that will turn off
water to the affected area only— turn off this
valve instead. Drain water from the system
by opening both the hot and cold sides of the
lowest faucet in the house.
Manifold Installation
One Branch, One Fixture
To get the full benet of manifold use, each
branch should supply only one xture. Sup-
plying more than one xture on a branch
increases the chance of pressure uctua-
tions, which can cause inadequate water
pressure and scalding.
Placement
Because potentially half of the crimp con-
nections are at the manifold (the other half
at the various termination points), be sure
to locate the manifold(s) in an accessible
location, preferably near the water heater.
Locating near the water heater ensures
that quickest delivery of hot water (per
code, make sure manifold is at least 18″
from water heater).
Valved Manifolds
Sioux Chief offers both valved and stan-
dard manifolds— valved manifolds allow
easy isolation and service of a xture with-
out affecting water service to the rest of
the house.
Manifold Sizing
The home run manifold system allows
individual lines for each xture. To “size”
a manifold, count the number of cold and/
or hot water locations that you plan to
plumb. Be sure to remember ice makers
and outside hose bibs. Always purchase
manifolds with enough cold and hot water
branches to service all planned xtures.
Branchmaster Manifolds can be linked
with ¾″ PEX tube to allow unlimited branch
connections. Make sure to plug all unused
branches with a 6″ stub of tube and a PEX
plug (6″ should be enough to let you cut
off the plug and use the branch for future
xtures).
Transitioning from CPVC
Position the PEX tee and two equal
lengths of PEX tube between the CPVC
× PEX ttings. Trim off excess tube
and crimp in the PEX assembly per the
‘Making Crimp Connections’ sheet.
(see page 11)
Crimp in the new supply line to the
xture.
YOU’LL NEED
Crimp tool Crimp rings
Test gauge
4
9
Transitioning from Copper
Planning Manifold Locations
Transitioning from CPVC Manifold Installation
10
3
2
4 PEX Installation Tips
www.siouxchief.com 9
Locate the nearest existing accessible
water line to the new xture (toilet, tub/
shower, sink, etc.) and plan the most
direct route from that line to the xture
(read ‘running PEX Tube’ for tips/pre-
cautions).
YOU’LL NEED
Tape measure Ladder
STEP
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