4
Step 9
After the air tests are successful and no visible bubbles are present,
remove both test caps and replace with the stem cutter and the bottom
cap.
NOTE: Ensure the stem cutter is backed out all the way, to prevent the
cutter from making contact with the copper tubing.
Now, engage the stem cutter.
Use a manual 3/8” socket wrench.
Using steady pressure, ratchet the stem cutter down until both walls of the copper tubing
have been cut.
NOTE:
Do NOT use a drill motor.
Step 11
Remove both copper slugs and flush the debris. To do this, remove the bottom cap.
Some water may be trapped here. If the water does not appear to be completely
shut off, remove the bottom cap completely and slowly ratchet the stem cutter down
further until the water flow stops.
To remove slugs, take a hammer and a flat head screwdriver to gently tap the high
side of the two copper slugs into a vertical position and remove the slugs with needle
nose pliers.
Note: To flush debris, reverse the stem cutter with bottom cap off until you see a flow
of water. Debris should be flushed. Reseat the valve until the flow stops and replace
cap. Now use the Add-A-Valve
®
to make a repair or as a live, hot tap.
The Jomar Add-
A-Valve® is engineered for ONE-TIME use as an emergency shut-off device. Once
the stem cutter has been raised, DO NOT lower it again.
This is a TWO person operation.
Use a 9/16” socket wrench on the stem cutter, and with the help of a second person, use an open-end
wrench on the outer stem. This sets the depth of the cut and prevents the cutter from binding. Slowly turn
both wrenches simultaneously.
OPTIONAL: A drill can be used to turn the stem cutter at a constant, slow RPM, while using an open box
wrench to adjust depth. Do not advance the outer stem at a rate that causes the cutter to bind. If the cutter
begins to bind, stop the drill and retract the outer stem by ¼ turn. Slowly restart the drill and continue
advancing the outer stem down. If using a cordless drill, have a backup battery and additional socket wrench on hand.
NOTE:
This option is for double stem models ONLY. Do not use a drill motor on Add-A-Valve sizes 1” and below (single stem models).
SINGLE STEM
For sizes 1/2” to 1”
DOUBLE STEM
For sizes 1-1/4” to 2”
Step 10
When the stop ring is reached, the seating position of the valve is met. At this time, ratchet
approximately one to one and a half turns to expand the Viton® seal across the two pipe cuts.
Determine what size Add-A-Valve® you have and follow the corresponding directions:
12”
CAUTION
Pipe hanger supports should be installed on
both
sides of the Add-A-Valve® to
eliminate stress at the ends of the valve. If hangers cannot be installed, it is NOT
recommended to use the Add-A-Valve®.