INTRODUCTION
1.1 - GENERAL DESCRIPTION
SANIGRIND
is a residential grinder and pumping system for
toilet and bathroom fixtures. The macerator unit connects to a
vertical outlet toilet.
The macerator unit consists of three major parts: the case
which houses the operating mechanism; a pressure chamber
which automatically activates and deactivates; the induction
motor which drives the grinding blade and the impeller pump
(below the motor).
Bathroom connections
Sanigrind can simultaneously receive wastewater from several
sanitary fixtures, e.g. hand basin, shower, bidet, bathtub, urinal,
but only one water closet per unit.
Laundry connection
Sanigrind is not intended to be used for the disposal of waste
water from such pump appliances as clothes washers. However
these appliances can be connected to the Sanigrind provided
that they drain first into a laundry sink.
All fixtures connected to the macerating system must be
located on the same level.
The toilet that connects to the
SANIGRIND
should be built
onto a sub floor (typically made out of 2x6 on edge).
We recommend that the elbow/toilet flange and drainpipe is
prepared before laying the plywood floor. Most toilets require a
12-inch rough in, measured from the finished wall, then the
toilet drainpipe should be long enough to reach the Sanigrind
pump. As a finished wall is 4.5 inches deep, you need to add
a few inches for the connection, this means that the 3-inch
drain pipe is around 16-inches long. The drainpipe must not be
longer than 24 inches.
Once the elbow/flange/drain pipe connection has been prepared,
this assembly can be installed and the plywood floor finished.
SANITARY INLETS
The macerating unit is equipped with two 1
1
/
2
" inlets, one on
either side of the case. These inlets are used to connect other
sanitary fixtures than the WC. When installing a bathtub or a
shower, take into account the necessary slope for drainage by
gravity. Since the Sanigrind is generally installed below ground
level, gravity-flow should not be a problem. However, at ground
level if necessary, you can build a 2 x 6-inch platform, on which
the tub or shower can be placed. This gives enough space for a
p-trap. Similarly, a special raised shower base can be
purchased.
VENT CONNECTOR
Sanigrind
is equipped with a 1
1
/
2
’’ inlet for connection to a vent
system.
1.2 - NORMAL OPERATING CYCLE
As the toilet is operated or as the bath, shower or hand basin
discharges, the water and waste enter the unit. The water level
begins to rise, engaging the pressure switch in the pressure
chamber. This in turn activates the motor and pump. The
shredder blades rotate at 3600 RPM, shredding waste. The
shredded waste is picked up by the impeller pump and discharged
through a
3
/
4
" outlet pipe to a sanitary sewer or soil stack.
Safety note:
For safety reasons the macerating unit should
never be activated with the lid removed
INSTALLATION
2.1 - PREPARING THE MACERATING UNIT (see § 6)
Push the discharge elbow-flapper in the desired direction for
drainage. Secure the base of the discharge elbow with clip
(see fig. 6a).
At this point you can connect the pipe work from the other
sanitary fixtures to the macerating system, (see «Connection
to discharge pipe work & soil stack»).
2
1
2.2 - SYSTEM ASSEMBLY
(see fig. 6b)
1. Place the macerator at the desired location and connect the
pipe work to it (See Connection to Discharge Pipe Work),
2. Rough-in the proprietary flange/elbow as per toilet
requirements. I.e. 10' or 12' from the finished wall. Glue a
3" drain pipe into the elbow and insert the other side into the
macerator connector.
Note:
The Flange/Elbow is made of ABS material, you will be
able to use PVC pipe if using an ABS/PVC transition cement,
3. Build a sub floor out of 2x6 inches and ensure that you place a
2x6 beside each side of the drainpipe, this will stabilize the
toilet. The total depth (front of the floor to the rear wall) of the
sub floor is most often a personal preference. Typically about
4 feet deep.
4. Assemble the elbow/flange and drain pipe, connect for
additional safety the rubber booth and tighten with gear
clamps. Side assembly into the floor (ensuring that the proper
rough-in measurements are adhered to) and lay the plywood
floor. Fasten the flange down with woodscrews.
5. Insert toilet bowl screws into the flange, place wax ring onto
the flange and place the bowl on the flange. Slip the china
protectors over the toilet bowl screws and tighten. Snap plastic
cover caps in place.
6. Install tank as per toilet installation instructions. The tank
comes with the fill and flush valve assembled, however, please
ensure that all screws, nuts, etc. are tightened.
2.3 - CONNECTION OF THE OTHER SANITARY APPLIANCES
To connect to the side entries of the case, use the side
connector. Secure with clamps:
- To connect a hand basin, use the connector
and clamps
(see fig. 6c 1)
- To connect a shower or a bathtub, use the connector
,
a clamp
and a clamp
(see fig. 6c 2)
Plug the unused inlet with blanking plug after greasing the joint
(see fig. 6c 3).
Warning:
Ensure when connecting a shower to the macerating
unit that the underside of the shower tray is raised by at least
7 inches from the floor.
2.4 - CONNECTION TO WATER SUPPLY
Connect the water supply to the toilet tank and the shut-off
valve. You can add a shut-off valve on the water supply hose.
2.5 - CONNECTION TO THE DISCHARGE PIPEWORK
Use ridged wall pipe, copper, PVC or CPVC not flexible pipe or
hose.
Option:
You can install a “full-port” gate valve and a drain at
the lower portion of the discharge pipe, in order to facilitate the
removal of the macerating unit.
2.6 - CONNECTION TO THE SOIL-STACK OR SEWER
This unit must discharge into a minimum 3-inch sanitary
drainage pipe. The macerating system will pump up to 18 feet
vertically, or up to a maximum of 150 feet horizontally, with a
constant
1
/
4
" to 1' gravity fall (minimum) throughout the run to
the point of discharge. If you require a vertical lift it should
precede any “horizontal” run and should commence as near as
possible to the discharge elbow.
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