Hi, I'm Vance and welcome to repair and replace.
In this episode we're going to
install a Delta tech II manual flushometer.
This applies to both urinals and
water closets
as the models are nearly identical
except for the spud diameter and size.
To begin, you'll need a flushometer,
a smooth jaw wrench and a flat
blade screwdriver.
You might also need a pipe cutter,
solder flux paste, lead-free solder,
a blowtorch and thread sealant tape.
First, dry fit the flushometer in
place to check the height and position.
Starting from the top of the fixture
measure up to the middle of the supply line.
Water closets have a max height of
11 and a half inches and urinals will
have a maximum of 13 inches.
The flush pipe can be trimmed down to a different
height if needed. If you measure from the
center of the supply line to the center
of the valve. It should be 4 and 3/4 inches.
Next, measure from the wall to the
center line. It should be a minimum of
two and a quarter inches away. Now, check
the length of the copper tube.
Measure from the wall to the center line of the flushometer.
The copper tube should be
one inch shorter than that distance.
Cut the pipe if necessary. Next solder the
adapter to the copper tube to secure it in place.
Cut the cover tube one and a
half inch shorter than the centerline
measurement. Slide the wall flange and
cover tube over the supply pipe.
Now, apply the thread sealant and screw the
inlet stop into the adapter. Use a smooth
jaw wrench to tighten it into place.
Next install the spud or flush pipe.
Slide on the hex coupling and flange.
Slide on the slip joint nut which is
made up of the coupling nut, a fiber washer
and rubber washer.
Align the flush pipe and hand tighten
the nut. Now, assemble the vacuum breaker.
Slide the plastic insert into the lip on
the rubber sleeve. Place the washer
overtop and insert the vacuum breaker
into the flush pipe. Next set the
flushometer body on the flush pipe and hand
tighten the Union nut and hex coupling.
Now, use a smooth jaw wrench to secure
each connection.
Turn on the shut-off valve to the supply line.
Next, remove the cap and use a flat blade screwdriver to
open the control stop one full turn
and then replace the cap.
Finally, test flushometer and check for
any leaks. If this is a new installation
it's recommended to flush the valve four
or five times to clean out the supply
line of debris.
The default flush volume is set differently depending on the
model but can be adjusted. Remove the
cover screws using an eight point star
bit or a number three Robertson screwdriver.
Now, remove the cover and use a flat
blade screwdriver to turn the screw
clockwise to decrease the flush volume.
Turning the screw counterclockwise will
increase the flush volume.
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Thanks for watching.