User Manual
FV828 Rev. A 02/07/23
Page 6
Maintaining Your EZ Flush
Before the supply water is turned on, be sure all stop valves
to the ush valves are closed o tight. The stop valves can
be opened and closed by using the adjusting screw located at
the center of the stop valve cap, behind the stop valve cover if
already installed. Stop valve adjustments can only be made by
using the adjusting screw.
It is not necessary to remove the stop valve cap when
making adjustments. If for any reason it becomes necessary
to remove the stop valve cap, be certain the water is shut o
at the main supply valve.
Stop Valve
On/O
When all ush valves are connected to the xtures and water
pressure is available, it is recommended that the supply piping be
ushed to remove dirt, pipe chips, etc., from system.
Use the following procedure to ush out the supply piping:
1. Remove the main valve body cover.
2. Remove the working parts from the ush valve shown on the right
3. Replace the plastic cover and main body cover without reinstall-
ing the working parts.
4. Open the stop valve by using the stop adjusting screw and ush
out all debris from pipe and connections.
5. Shut stop, open cover, reinstall the working parts, replace both
covers and tighten.
This procedure should also be repeated when the system is drained
for seasonal use, as occurs in athletic elds, recreation parks, etc.
Stop Valve
On/O
Body Cover
Plastic Cover
Working
Parts
The ZER ush valves are preset for xture volume as marked
on the valve cartons. The valve does not require regulation for
variation in water pressure within its operating range. To set
the ush valve for proper operation, gradually adjust the stop
valve open, using the adjusting screw, while actuating the valve
until the rate of water ow into the xture is not excessive, yet
is sucient to adequately evacuate the waste. The nal setting
for urinals should be such that the xture will not overow when
the valve is actuated in succession. The stop cap screw cover
should be replaced after nal adjustments have been made.