Pentair THS Series Installation And User Manual page 24

Drill and tap for ¼" NPT hole on the
influent and effluent pipes from the
filter system (see schematic diagram in
Appendix B). Install quick connect
fittings into pipe. Be sure to use pipe
thread sealant tape on the threads.
Install 3/8" OD tube from fittings to rear
of the gauge panel assembly. Connect
tubes into correct gauge on the rear of
the panel (see picture).
Connect lengths of tubing into the quick
connect fittings on top of the valve cover. Join
these two tubes with a quick connect tee as
shown in the picture.
Connect a length of tube from the open end of
the quick connect tee from the valves to the
fitting on the back of the gauge panel assembly
as shown in the picture. Connect tube from
remaining quick connect fitting and connect to
drain.
This completes the installation of the semi-
automatic backwash controller for single tank
systems. Please proceed to Section 2.6 for
operating instructions.
Diaphragm Valve Face Piping Kit Installation Manual Pg. 23 of 52
5/31/12 Rev. F