Engineering Bulletin

ZURN INDUSTRIES, LLC SPECIFICATION DRAINAGE OPERATION
1801 PITTSBURGH AVENUE, ERIE, PA, U.S.A. 16502 PHONE: [phone] FAX: [phone] www.zurn.com
Form No. SD10, Rev. 1/11
Z1173 Ejecto-Matic Typical Installation
To simplify the cleaning process and prevent grease from
clogging drainage lines, Zurn has developed the Ejecto-Matic
Greaseptor. This unique unit is provided with a skimming tray
which retains the accumulation of grease. Cleaning simply
becomes a matter of discharging hot water through the
Greaseptor. The resultant heat liquifies the grease, which is
then ejected through the nozzle at the turn of the handle. The
ejected grease may be collected in a bucket or other container
for easy disposal. Any water that may enter the tray is directed
back into the intercepting chamber by means of a water dis-
charge port incorporated into the design of the skimming tray.
1. The manual draw-off valve reduces the frequency that the
cover of the interceptor must be removed during the
cleaning process.
2. Grease is removed from the interceptor by means of the
Ejecto-Matic valve located on the outlet end of the interceptor.
3. To remove grease from the interceptor, hot water is first run
through the unit to liquefy the grease. The water flow is
then shut off and the draw-off valve is opened, allowing
the grease to gravity-flow out of the interceptor. When no
grease is present, the valve is then closed.
4. The grease layer that forms on top of the water must build
down to reach the level of the Ejecto-Matic valve. If water
is coming from the valve, then the interceptor has not yet
reached its capacity for cleaning.
5. If grease is present when the valve is opened, this ejected
liquid grease can be collected for proper disposal.
6. Frequency of grease draw-off is established experimentally.
Some installations may require drawing off grease daily,
while others periodically.
7. Solids and food waste should not be allowed to accumulate
in the interceptor. This will impair the operation of the unit
and cause reduced efficiency. Check the interceptor for
solids and clean manually as required.
GENERAL PRODUCT INFORMATION, continued
Z1174 Grease Eating Bacteria Dosing Unit
To keep the grease interceptor operating in optimum condition,
it is recommended that the Z1174 automatic bacteria dosing
unit is used on a regular basis. The dosing unit delivers to the
interceptor an engineered microbial blend that degrades grease,
fats, proteins, and carbohydrates. The added bacteria does not
transfer the grease downstream; however, it degrades and
digests the grease inside of the unit. This environmentally
friendly formulation reduces the production of foul odors
that can emit from inside the interceptor and drain lines.
The Z1174 liquid bacteria contains no harmful caustic elements
and won’t damage the interceptor or drain piping. It is specifi-
cally engineered to degrade only the agents for which it was
developed. As a result, this bacteria concentrate gives full
protection to interceptors and related waste piping systems.
Sizes 200-800