8 PWF Filter Systems
NOTICE
When assembling the installation fitting package, connect
the fitting to the plumbing system first and then attach the
nut, split ring and o-ring. Heat from soldering or solvent
cements may damage the nut, split ring, and o-ring. Make
sure solder joints are cool before assemble is started.
Split ring retainer design holds the nut on and allows load to be
spread over the entire nut surface area reducing the chance for leak-
age. The split ring design, incorporated into the installation fittings
allows approximately 2 degrees off axis alignment to the plumbing
system. The installation fittings are designed to accommodate minor
plumbing misalignments but are not designed to support the weight
of a system or the plumbing.
When assembling the installation-fitting package, connect the fitting
to the plumbing system first and then attach the nut, split ring and
o-ring. Heat from soldering or solvent cements may damage the nut,
split ring, or o-ring. Solder joints should be cool and solvent cements
should be set before installing the nut, split ring, and o-ring. Avoid
getting primer and solvent cement on any part of the o-rings, split
rings, and bypass valve or control valve. Solvent cements and prim-
ers should be used in accordance with the manufacturer’s instruc-
tions.
Move Filter System Into Place
1. Connect the cold water supply to the inlet of the water condition-
ing system. While constructing the supply line, install a master
supply valve (user supplied) in the supply line and close it.
2. Connect the feed water line to the home to the outlet of the
system.
3. Make sure floor is level.
Measure, cut, and install pipe and fit-
tings to the bypass valve (dry fit only to
make sure you have a proper fit) inlet
and outlet side. Be sure hard water is
supplied to the inlet side. Trace pipe
to be sure.
The installation fittings connect to the
control valve or the bypass valve using
nuts that only require hand tighten-
ing. Hand tighten nut connections
between control valve and installation
fittings,control valve and bypass valve,
and bypass valve and installation fit-
tings allow for easy serviceability. Do
not use a pipe wrench to tighten nuts
on installation fittings. Hand tighten
only.
Slip the nut onto the fitting first, then the split ring second and the
o-ring last. Hand tighten the nut. If the fitting is leaking tightening the
nut will not stop the leak. Remove the nut, remove the fitting, and
check for damage or misalignment of the o-ring.
Do not use pipe dope or other sealant on threads. Teflon tape must
be used on the threads of the 1" NPT elbow and the 1/4" NPT con-
nection and on the threads for the drain line connection. Teflon tape
is not necessary on the nut connection or caps because of o-ring
seals.
Connect the Drain Line
1. Plumb the drain line to an appropriate drain abiding by all local,
city, and state codes. Use a 3/4” drain line for backwash flow
rates of 7 gpm or for drain lines of 7 gpm and less that exceed
20’ in length. Use a 1” drain line for backwash flow rates of 10
gpm and 12 gpm.
2. If the drain line is a 5/8" flexible poly tube, slide the nut onto the
poly tube, then place the poly tube insert into the end of the poly
tube and tighten the nut on to the 3/4" drain line fitting. The nut
is only designed for use with flexible poly tube. Use other nuts if
attaching different materials. Run line to a drain. Making sure you
have a 1 1/2" airgap. You may use a floor drain, standpipe or any
open type drain (see Fig 7).
Do not use Vaseline, oils, or other unacceptable lubricants on
o-rings. A silicon lubricant may be used on the black o-ring.
Use a pliers or crescent wrench to tighten or unscrew the nut. Do
not use a pipe wrench to tighten or loosen nut. Do not use pipe
dope or other sealant on threads. Use Teflon tape on the threads of
the drain line control fitting when installing 3/4" NPT or 1" straight
fitting.
Figure 7: Also be sure drain line has an air gap.
