Brochure

- 13 -
• Air Gap/ Air Break
Tank Connections
Connection of Dishwashing Systems
Air-Balanced Operation
Venting
Drain Cleanouts
Head Eect
Accessibility for Maintenance:
All Endura Grease Interceptors are manufactured with standard no hub connections
to accept locally approved/accepted MJ (Mechanical Joint) couplings.
This method allows resilience in the connections to prevent stress and a exible means of
integrating metallic or plastic plumbing systems. Should adaption of pipe connection be
required, use appropriate mechanical joint reducers but do not allow decrease pipe
diameter across the unit. (i.e. 3” inlet , 2” outlet.)
Due to regional and local code variation, models with threaded connections (FPT) are available by
adding sux ‘T’ to the part number. Both tank and ow control (TFCD) will be supplied with FPT
connections in this instance based on the respective nominal pipe size. Likewise Endura Interceptors
can be supplied with spigot format ow controls (SFCD) by adding sux ‘S’ to the part number.
Note: Solvent cement is not an acceptable jointing method from the
piping system to the interceptor. This will result in leakage.
Dependent on the Authority Having Jurisdiction (AHJ), a dishwashing system may be required or prohibited from discharging to
the grease interceptor. Verify with the respective AHJ. Best practice recommends that where a dishwashing system is required to
be connected to the interceptor, that it be serviced by a separate and appropriately sized interceptor, the outlet being connected
to the building drain downstream of the main interceptor.
Where not specied, the dishwashing system is recommended to bypass the grease interceptor, the outlet being connected
downstream of the interceptor outlet. This is based evidentially on the negative impact of commercial detergents and surfactants
that are specically designed to emulsify fats oil and grease making it virtually impossible to separate this material from waste
water discharge. If discharged to the interceptor, the same agents will likewise cause even the most ecient interceptor,
regardless of generic type to work at a signicantly reduced eciency, passing FOG to the downstream system.
A hydromechanical grease interceptor is designed to operate as an air balanced environment. This is vital to the function of the
interceptor and as such no modication or removal of any component parts should be made before, during or after installation
unless specically addressed in the respective Installation & Operation document.
Unlike Gravity Grease Interceptors, a Hydromechanical Grease Interceptor tank is not required to be directly vented. This would be
detrimental to the function of the interceptor. All connected appliances shall be individually trapped and vented in accordance
with local code requirements. The downstream drain carrying euent to the municipal wastewater system shall also be vented
to atmosphere in compliance with applicable code.
For installations below grade, most codes require the installation of a two way cleanout immediately before and after the
respective inlet and outlet connections. These cleanouts will be extended to grade so as to remain accessible once the interceptor
is operational.
An installation above or below grade that sees a fall equal to or in excess of 8 ft, when measured from the outlet of the highest
appliance to the invert of the interceptor SHALL require the installation of a secondary ow control device to neutralize the eect
of head pressure. The rst ow control will be located as close as possible to the last appliance discharging to the interceptor,
the second being located externally immediately before the interceptor or by utilizing the manufacturers internal ow control
device where available. See page 17/18 for reference.
All grease interceptors regardless of generic type, require regular maintenance. Any design and subsequent installation shall
make due consideration to the provision of access for the same as dened in the respective installation documentation. Canplas
installation documents are available for download or reference at www.endurainterceptor.com