EXTENDABLE BACKWATER VALVE
HOMEOWNER'S MAINTENANCE GUIDE
Congratulations! Your property is now protected from sewage
backups by the Clean Check extendable backwater valve.
Under normal installation and use, a three month inspection
interval is recommended. After an appropriate number of
inspections, you can determine a more accurate time period
depending upon usage.
Inspection can be quick and easy. First, remove the
threaded plug or cover and perform the following procedure.
Loosen but do
not remove the stainless steel thumbscrew located inside the
approximate locations of the thumbscrew and opposing notch
at this time for the correct repositioning of the insert
pipe during reinstallation.
finger hole provided above the thumbscrew, extract the
insert pipe and attached flapper assembly.
debris from the flapper and/or valve body.
flapper for any deterioration or damage caused by the harsh
environment in which the flapper must operate. If
deterioration is observed, replace the flapper. Flappers are
available from your plumbing contractor or wholesale
plumbing supply firm. (If none are readily available, contact
the factory toll free (800-231-3345) for a local source.)
The Clean Check
Extendable backwater valve is designed for easy
reinstallation. To properly reseat the valve, slowly lower
the inner assembly and rotate until the thumbscrew
(loosened so that it does not touch the side of the riser
pipe) faces its original
installed position in the larger riser pipe. If
necessary, rotate the inner riser so the thumbscrew is
located as it was previously. During rotation, the unit can
be felt to drop into place when it seats correctly.
the thumbscrew until it reseats against the wall of the
larger riser pipe. Be certain the thumbscrew is NOT resting
on the top of the larger riser pipe. The flat side of the
flapper should now be resting, in the closed position, on
the house side of the valve body.
threaded plug or cover.
NOTE: Harmful bacteria are
present in sewer lines. We recommend that you contact your
local health district for proper sanitary precautions.