SaniFlo SANIGRIND Grinder Pump

The SaniFlo SaniGrind is a system used to install a complete bathroom up to 18 feet below the sewer line, or even up to 150 feet away from a soil stack.  The SaniFlo SaniGrindcan handle the effluent from a toilet, sink, bathtub, shower and washing machine (indirect connection).

While most of our pump range are macerators, the SaniFlo SaniGrind incorporates an actual grinder system.  The SaniFlo SaniGrind is ideal for situations where you do not control the use of it (ie. rental unit, offices, warehouses, etc).  It is designed to deal with sanitary articles that may have been flushed down the toilet; such articles may consist of sanitary napkins, q-tips, dental floss, etc.

Note: In commercial installations, plumbing codes require an elongated bowl to be installed with this system.

The SaniFlo SaniGrind is simplicity itself to install; there are just four connections.

• The SaniFlo macerator/grinder pump is connected to a standard North American bottom outlet toilet
• The SaniFlo toilet tank is connected to the water supply
• The SaniFlo macerator/grinder pump is connected to the small diameter discharge pipe work
• The SaniFlo macerator/grinder pump is connected to the electrical supply

The inside of the SaniFlo SaniGrind is comprised 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 activates a micro switch in the pressure chamber, which in turn starts the motor. The motor is sealed for life in an oil filled enclosure.  A common 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 SaniFlo SaniGrind unit pumps the effluent upward to 18 feet and/or 150 feet horizontally (with gravity fall).  The operating cycle for the SaniFlo SaniGrind varies depending upon the discharge pipe run configuration.

In addition, the SaniFlo SaniGrind 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 side inlet of the pump and the base of the bathtub/shower.  This height difference should be of 6” (minimum) or 8” (recommended), to allow for the installation of 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 via two 1½-inch inlets, on either side of the housing.  The discharge elbow on top of the SaniFlo SaniGrind can be rotated 360 degrees depending on the discharge installation.  A non-return valve (included in assembly) prevents back flow into the unit.

This SaniFlo SaniGrind 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.  The use of mechanical vents, air admittance valves or similar devices are not permitted as these are considered one-way air vent systems. 

The SaniFlo SaniGrind unit must be connected to a standard toilet with a bottom outlet.  The maximum distance from a toilet should be no more than 24 inches.  It is highly recommended for the macerator/grinder to be connected to a Ground Fault Interrupter (GFI) circuit. 

The SaniFlo SaniGrind has been certified to American and Canadian Standards. Macerating standard; US: CSA Certified & IAPMO (UPC) listed - ASME A112.3.4, CA: Macerating Standard CSA B45.9.