2
200 SERIES COLD CLIMATE SUB-SURFACE DISCHARGE UNIT
Installation Instructions
GENERAL
INSTALLATION
Site Evaluation
Each Hydro-Guard®System
installation is unique and will
require a minimum of advance
planning. Prior to the installation of
the device, the drainage patterns
for the intended installation location
should be reviewed. The drainage
pattern must permit discharged
water to flow away from the Hydro-
Guard®Unit. Discharged water
flushed from the Hydro-Guard®
Unit must be routed away from
the device. It is recommended
that a 6" catch pipe (by others) be
installed inside of the 200 Series
Cold Climate's external cabinet.
The catch pipe shall be mounted at
of the internal flush
assembly. The
height of the 6" pipe
must be no less
than 3" from the
tip of the internal
flush assembly's
discharge point.
4. Connect the
utility's water system
to the Hydro-Guard®
Unit by means of
the 2" threaded
connection.
5. Backfill the hole
around under, and
inside of the Unit's
below grade base
with clean fill and/
or #57 stone.
Backfilling should be accomplished
in 6" compacted lifts. Check that
the Unit Is level.
6. After installation is complete,
sod the area around the
Hydro-Guard®Unit or take other
steps in order to prevent erosion.
Inspect the area immediately
around the Unit in order to ensure
that the existing ground cover is
not subject to severe erosion.
Overview
The Hydro-Guard®200 Series Cold
Climate Sub-Surface Discharge Unit,
the industry's premium patented,
programmable flushing apparatus,
is suitable for year-round use in
cold to extreme cold climates.
This Automatic Flushing System
has been designed, engineered,
and manufactured to provide
outstanding dependability and
performance.
Please read and retain this manual
for future training, reference,
troubleshooting, and maintenance.
Hydro-Guard® 200 Series Cold
Climate Unit
1. Remove the Hydro-Guard®Unit
from Its packaging and inspect for
possible damage during shipping.
2. Turn off service line feed.
Excavate a suitably-sized ditch
ensuring It is connected on one
side to the utility's service line
trench. Remove any debris that
might create uneven pressure
on the Unit. Compact the bottom
of the hole in order to minimize
settling after installation. Place
approximately 1½ to 2 feet of
#57 stone below the base of the
200 Series Cold Climate to allow
for drainage. Then install non-
compacted clean bedding material
within the bottom of the hole.
3. Slowly lower the Hydro-Guard®
Unit into place, pressing it firmly
Into the non-compacted bedding
material until It is fully seated.
Ensure that the Unit is level before
beginning the backfilling operation.
The top of the black base of the
enclosure should be approximately
1" above the final grade. Use
ground line marker on protective
in-ground sleeve to set height of
the internal assembly. Install the 6"
diameter discharge pipe opposite
least 3" under the discharge piping
of the 200 Series Cold Climate
(see Typical Installation illustration).
The 6" pipe shall be installed
a minimum of 24" below grade
before a 90-degree bend or pipe
size reduction. If desired, the 6"
pipe can be reduced to a 3" or 4"
pipe to continue the routing of the
flow to a final discharge point. The
recommended final discharge points
may include a storm drain, drainage
or retention pond, or a storm swale.
In the event static pressure is
routinely above 120 psi, Mueller
recommends installing a Pressure
Reducing Valve ahead of the Hydro-
Guard Flushing System."
7. Disinfect the Hydro-Guard®
Flushing Device in accordance
with the utility's policy. DO NOT
exceed the dosage and contact
times recommended by the
AWWA.
8. The Hydro-Guard® Automatic
Flushing Device may now be
programmed and placed into
service.
