The inside of the Sanigrind Pro comprises of a pressure chamber, which starts and stops the unit, and the motor, which drives the stainless steel cutting blade and the pump. When the flush is activated, the water flowing into the Sanigrind Pro activates a micro switch in the pressure chamber, which starts the motor. The motor is sealed for life in an oil-filled enclosure. A standard spindle/shaft drives the impeller and the blades. The moving parts, therefore, are kept to an absolute minimum. Water and organic waste matter enter the chamber and are reduced to slurry as the blades rotate at 3600 RPM. The reduced solids are picked up at the bottom, and the impeller mounted beneath the motor ejects the waste. The unit pumps the effluent upward to 25 feet or 150 feet horizontally (with gravity fall). Once the water level in the container goes down, the micro switch deactivates. The operating cycle for the Sanigrind Pro varies depending upon the discharge pipe run configuration.
In addition, the Sanigrind Pro will also discharge gray water from a variety of other sanitary fixtures such as a sink, a bathtub/shower, a urinal, and even a washing machine (indirect connection). When adding a bathtub/shower, there should be a height difference between the pump's base and the base of the bathtub or shower. This height difference should be 8" to allow installing a P-trap and the required 1/4" per foot gravity flow towards the pump unit.
The wastewater from other sanitary fixtures is discharged into the Sanigrind Pro via two 2-inch inlets on either housing side. The discharge elbow on top of the Sanigrind Pro can be rotated 360 degrees depending on the discharge installation. A non-return valve (included in assembly) prevents backflow into the unit.
This unit has been designed with a vent connection on the lid. All plumbing codes require connection to a vent system. Please note that the vent system should be a two-way air vent. Mechanical vents, air admittance valves, or similar devices are not permitted as these are considered one-way air vent systems. It is highly recommended that the system be connected to a Ground Fault Interrupter (GFI) circuit.
Periodic maintenance can be accomplished quickly without disconnecting the unit from either the toilet or the rest of the plumbing system. Through a service panel, a service contractor can easily access the electrical components and the level sensor mechanism of the pump.
The Sanigrind Pro unit must be connected to a standard conventional toilet with a bottom outlet. The maximum distance from a toilet should be no more than 36 inches and should have enough gravity fall.