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Simple, straightforward and low shipping rates for these Little Giant sewage pumps.



Dominator® Submersible Sewage Ejector Pumps

by Little Giant


When it comes to submersible sewage ejector pumps, don't take chances with an inferior pump, when you can have a Little Giant pump at an affordable price. These quality, durable pumps are made to give you years of trouble free operation. These powerful pumps can be used in basins or lift stations for pumping sewage, effluent, wastewater, or any other non-explosive, non-corrosive liquids. They can also be used as a replacement for many other brands of pumps that are used in basement sewage basins. PlumbingSupply.com® is your source for ejector pumps, packaged ejection systems and thousands of other plumbing products, fixtures and supplies.

Little Giant 9SN Series Sewage Ejector Pumps
Image of the 9SN-CIA-RF pump These Little Giant 9SN Series Sewage Pumps have permanent split capacitor motors that use less electricity than standard motors. A lower electrical current draw means the motor will run cooler. For added protection the motor housing is filled with a dielectric oil to quickly dissipate any heat and at the same time provides lifetime lubrication to the bearings.

Although these pumps use less electricity than others, it pushes wastewater and solid waste material up to 2" diameter up through the volute and out the 2" discharge at a tremendous rate of 110 gpm at 5' of head pressure. A cast iron external housing with a protective epoxy coating and stainless steel screws, bolts, handle and seal assembly assist in providing excellent rust and corrosion resistance.

The automatic model #9SN-CIA-RF and the manual model #9SN-CIM are designed for continuous use and have the same pump specifications:
HP=4/10, watts=920, flow rate=6600 gph @ 5' head pressure and a maximum vertical lift or shut-off at 20' (pump can be running but will not pump higher). View the performance curve chart for the Little Giant #9SN-CIM and #9SN-CIA-RF pumps. These pumps are 115 volt cCSAus listed and weigh 36 lbs. The model #9SN-CIA-RF uses a mechanical piggyback float switch for automatic operation. The float switch will turn the pump on when the liquid level is between 9" and 14" and turn the pump off when the liquid level is between 2" and 6".
The 9SN-CIM manual pumps can be used for automatic operation when used with a piggyback float switch or liquid level control panel. We offer float switches and liquid level control panels with alarms for 115/120 volt pumps here


115 Volt - 60Hz - 4/10 HP - 110 Gpm @ 5' head - (cCSAus Listed)

Model Description Price & Quantity
#9SN-CIM 4/10 HP - Manual Submersible Pump - 2" Discharge
115 volt - 9 amps - 20' cord
$286.74
#9SN-CIA-RF 4/10 HP Automatic Submersible Pump - 2" Discharge
115 volt - 9 amps - 20' cord
$362.20

Due to the size and/or weight, these pumps do not qualify for 2nd day shipping.

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It's always a good idea to use a check valve with these types of pumps!
We offer lots of check valves for sewage pumps


Little Giant 10SN-Series Sewage Ejector Pumps
These 1/2 HP submersible sewage ejector and wastewater pumps handle liquid and solid waste materials up to 2" diameter using a vortex thermoplastic elastomer impeller. Designed for continuous use, these pumps are specifically engineered to handle the tough, demanding tasks of effluent and sewage waste transfer in residential, commercial, industrial or agricultural applications.

The cast iron pump housing and volute have a protective epoxy coating as well as stainless steel screws, bolts, and handle for rust and corrosion resistance. The oil filled motor housing is not only designed for lifetime lubrication, but also rapid heat dissipation to cool the motor. Permanent split capacitor motors use less electricity than normal induction type motors, less electricity means less heat to the motor, allowing them to run cooler and extend the motor life expectancy. All 10SN pumps are thermal overload protected and have mechanical shaft seals (stainless steel spring, nitrile parts, carbon and ceramic faces).
Sewage ejector pump 10SN series
Model 10SN-CIA-RF shown
Both manual and automatic models have a flow rate of 7200 gph @ 5' head pressure (which is 120 gallons per minute!) with a maximum vertical lift or shut-off at 25', which means it will not pump or lift effluent (liquid/solid mixture) any higher than 25 feet. Both are 115 volt and cCSAus listed. The performance curve chart shows the optimum working range for the 10SN series pumps.
The 10SN-CIM manual pumps are easily converted for automatic operation when used with a liquid level control panel or piggyback float switch. We offer liquid level control panels with alarms and piggyback float switches for 115/120 volt pumps here.

115 Volt - 60Hz - 1/2 HP - 120 Gpm @ 5' head - (cCSAus Listed)

Model Description Price & Quantity
#10SN-CIM 1/2 HP Manual Sewage Ejector Pump - 2" Discharge
115 volt - 9.5 Amps - 20' Cord
$369.88
#10SN-CIA-RF
(shown above)
1/2 HP Automatic Sewage Ejector Pump - 2" Discharge
115 volt - 9.5 Amps - 20' Cord
with piggyback float switch
$399.82

Due to the size and/or weight, these pumps do not qualify for 2nd day shipping.

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Little Giant 14S-Series Sewage Ejector Pumps
These powerful 1/2 HP submersible sewage ejector pumps have a flow rate of 6000 gph @ 10' head pressure (which is equivalent to 100 gallons per minute!) and 7800 gph @ 5' head (which is equivalent to 130 gallons per minute @ 5' head). The maximum vertical lift is 25 feet, which means even though the pump is running, effluent (fluid/solid mixture) will not pump beyond a 25 foot vertical pipe length; it will just stay at that height in the pipe. Note: This vertical lift height could be less if there is any friction loss in the pipes due to excessive piping angles.

View the performance curve chart for the Little Giant #14S-CIM.

These pumps handle effluent liquids and up to a 2" spherical solid waste material using a two vane non-clog epoxy coated cast iron impeller. The 14S series pumps are recommended by the manufacturer for use in basins or lift stations and are suitable for pumping sewage, wastewater, effluent, and other non-explosive, non corrosive liquids. The epoxy coated cast iron impeller is dynamically balanced to help keep solids away from the seals for less seal and bearing wear.
ejector pump 14S series
Model 14S-CIM shown
The heavy duty cast iron pump housing has a baked-on protective epoxy coating and stainless steel hardware for longer corrosion and rust resistance. The pump motor housing is filled with a high grade dielectric oil for lifetime lubrication of the bearings and seals and to provide cooling by dissipating any motor heat very rapidly. The 1625 RPM ball bearing motor is equipped with an automatic resetting thermal overload protector that provides additional protection to the pump from over heating. For optimum cooling and to extend the motor life, the liquid level being pumped should cover the top of the motor housing. No maintenance of this pump is required!
For automatic operation, these 14S-CIM pumps must be plugged or hardwired into a float switch or liquid level controller. We offer float switches and liquid level controllers for 115/120 volt pumps here. We offer float switches and liquid level controllers for the 208-240 Volt 14S Series pumps here. The 14S-CIM pumps weigh 88 lbs.

115 Volts - 60Hz - 11.6 Amps - 1/2 Hp - 100 Gpm @ 10' Models - (UL/CSA Certified)

Model Description Price & Quantity
14S-CIM Manual pump - 2" discharge
115 volt  (11.6 amps - 1100 watts) - 20' cord
$605.90
14S-CIM Manual pump with 3" discharge
115 volt  (11.6 amps - 1100 watts) - 20'cord
$605.97

208-240 Volts - 60Hz - 4.6 Amps - 1/2 Hp - 100 Gpm @ 10' Models - (UL Certified)

Model Description Price & Quantity
14S-CIM Manual pump - 2" discharge
208-230 volts. 60Hz, 1 phase, (4.6 amps -1100 watts) - 20' cord
$621.40
14S-CIM Manual pump with 3" discharge
208-240 volts, 60Hz, 1 phase, (4.6 amps - 1100 watts) - 20' cord
$639.40

Due to the size and/or weight, these pumps do not qualify for 2nd day shipping.

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Need a check valve for your pump?
We offer many styles of check valves for sewage pumps


Little Giant 16S-Series Sewage Ejector Pumps
These Little Giant 16S Series submersible sewage ejector manual pumps handle liquids and 2" diameter solid waste materials with a flow rate of 160 gpm at 10' head and maximum vertical lift (shut-off) of 35 feet. This means the pump is unable to push effluent (fluid/solid mixture) any higher than 35 feet; any pumped fluid in a straight vertical pipe at that height will just stay at that height.

The performance curve chart for the Little Giant 16S-CIM pumps shows the optimum working range.
These 1 HP sewage ejector pumps have a 3" fips discharge and are rated for continuous duty as long as they are completely submerged in temperatures not above 140°F., operated with-in the pump curve ratings, and in proper waste water conditions as specified by Little Giant. The Heavy duty cast iron pump housing has a protective epoxy coating and stainless steel screws and bolts for corrosion and rust resistance. The motor housing contains a high grade dielectric oil, (aquatic safe) to cool the motor and to lubricate the bearings and seals. The capacitor and power cord connections are isolated from the oil filled motor housing for easy field maintenance if ever needed. These single phase models have permanent split capacitor (PSC) motors with automatic thermal overload protection. To achieve the best cooling, and get the optimum motor life from this pump, the level of the liquid being pumped should always cover the top of the motor housing. Two vane, non-clog impellers are epoxy coated cast iron with pump-out vanes to help keep solids away from the shaft and mechanical seal for less seal and bearing wear. The 16S-CIM pumps weigh 88 lbs. ejector pump 16S series
Model 16S-CIM shown
The 16S-CIM are manual pumps and for automatic operation must be wired into a separate control panel or used with a 200-230 volt float switch. We offer float switches and liquid level controls for 200-230 volt 16S Series pumps here. These pumps can be installed with ABS, PVC, polyethylene, or galvanized steel pipe. Proper plastic male pipe thread adapters are required to connect plastic pipe to the pump outlet pipe threads (Npt).

1 HP - 200/208 volt, 230 volt - 160 Gpm @ 10' Models - (UL/CSA Certified)

Model Description Price & Quantity
16S-CIM Manual pump - 3" Discharge
200/208 volts, 60Hz, 1 phase, 2000 watts/11.0 amps - 20' cord
$783.30
16S-CIM Manual pump - 3" Discharge
230 volts, 60Hz, 1 phase, 1900 watts/11.0 amps - 40' cord
$766.01

Due to the size and/or weight, these pumps do not qualify for 2nd day shipping.

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Little Giant 20S-Series Sewage Ejector Pumps
2 HP Little Giant submersible sewage ejector pumps provide a hefty 205 GPM discharge rate at 10 feet head pressure and has the capability to handle 2" spherical solid waste material. This pump has a 3" FIPS discharge and is easily capable of lifting and transferring wastewater along with 2" diameter solids at a discharge rate of 20 gpm at 70 feet of head pressure with a maximum vertical lift of 77 feet. The maximum vertical lift height is how high the water can be pumped. With the pump running the wastewater will not pump higher than 77 feet but will just stay at that height in the pipe.
View the performance curve chart for the Little Giant 20S-CIM 2 Hp submersible pump.
This manual 2 HP sewage ejector pump has a permanent split capacitor motor with thermal overload protection. This 20S series pump is rated for continuous duty as long as it is run completely submersed in liquid temperatures less than 140°F., operated with-in the pump curve ratings, and in suitable effluent and waste water conditions as specified by Little Giant. No oiling or maintenance of the pump is needed. The pump housing is factory sealed and the pump motor housing contains a high grade dielectric oil to cool the motor and to lubricate the bearings and seals. The liquid level being pumped should normally be above the top of the cast iron housing for the best possible cooling and longest motor life. The tough exterior of the pump is cast iron with a protective epoxy coating and stainless steel hardware. The red brass pump impeller is a non-clogging two vane style. The two pressure relief pump-out vanes help keep solids away from the mechanical seal for less seal and bearing wear and tear. The 20S-CIM pump weighs 96 lbs. ejector pump 20S series
Model 20S-CIM shown
This 20S manual pump can be used for automatic operation by using a mechanical float switch or with a liquid level pump control panel. We offer a float switch and pump control panel for the 20S-CIM 208/230 volt pump here.

208-230 Volts - 60Hz - 2HP - 205GPM @ 10' Models - (UL/CSA Certified)

Model Description Price & Quantity
20S-CIM Manual pump - 3" Discharge
2 Hp, 208/230 volts, 1 phase, 17.5 amps - 20' cord
$1029.58

Due to the size and/or weight, these pumps do not qualify for 2nd day shipping.

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Sewage Ejector Pump Cross Reference Chart
Little Giant is discontinuing the 9S, 10S and 10SH Series pumps. The cross reference below shows the old part numbers and which pump numbers you can order to replace your existing pump.

OLD Model No. OLD Item No. Use Model No. Use Item No.
9S-CIM 509400 9SN-CIM 509203
9S-CIA-RFS 509500
509520
9SN-CIA-RF 509204
10S-CIM 511400 10SN-CIM 511322
10SH-CIM 511420 10SN-CIM 511322
10S-CIA-RFS 511500 10SN-CIA-RF 511323
10SH-CIA-RFS 511520
511525
10SN-CIA-RF 511323



Automatic Controls for 115/120 volt Pumps up to 15 Amps
We offer top quality automatic operation devices for 115/120 volt pumps. The simplistic mechanical piggyback Wide Angle Float Switch and the Indoor/Outdoor control panel with an audible and visual alarm.
Image of the wide angle float switch for 115/120 volt pump
Wide Angle Float Switch
for 115/120 volt Pumps
The piggyback wide angle remote Float Switches provide simplistic automatic operation of a 115 volt or 120 volt manual pump using a maximum of 15 amps. These float switches consist of one float, a 10 ft. or 20 ft. cord with a piggyback plug, and one large mounting strap. These float switches can easily be installed to regulate the "on" and "off" level you determine by the adjustment of the tether length.
The #1151W200H Indoor and/or Outdoor pump and alarm control panel is for single pump applications. Since this system controls the on/off operation of the pump and will also warn you of a high liquid level condition a manual operated pump should be used. This control and alarm system includes a NEMA 4X waterproof fiberglass enclosure that comes equipped with a green pump indicator light, a red flashing alarm beacon, a silence and alarm test switch and a manual override switch. The manual override switch allows you to change the controller operation from automatic to hand (manual) operation or to "off".

We show the outside dimensions for this pump/alarm control panel system here.
The interior of the enclosure contains a fuse protected control panel equipped with a weather proof horn, a top quality alarm relay, a solid state flasher and a standard light bulb. To protect against unauthorized activation an "on/off" switch that controls the alarm system is also located inside the panel. Two float switches with 20' cords are included. One float switch controls the pump on/off and the other controls the alarm. Indoor/outdoor pump control panel
1151W200H Pump Control

with Alarm System
The wide angle Float Switches and the #1151W200H17A Control Panel listed in this section are for use with 115 volt or 120 volt pumps using a maximum of 15 amps.

Description Price & Quantity
Float Switch - wide angle - 115/120 volts - 15 amp maximum - 10' cord $44.05
Float Switch - wide angle - 115/120 volts - 15 amp maximum - 20' cord $49.07
Indoor/Outdoor Pump Control with Alarm #1151W200H (shown above)
115/120 volt 15 amp max. - includes 2 float switches with 20' cords
$589.98

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Automatic Controls for   208-240 Volt  14S-CIM PUMPS
We offer simple and sophisticated automatic operation devices for the 230 volt 14S-CIM pumps: the simple mechanical Float Switches, or the more comprehensive Indoor/Outdoor control panel with an audible and visual alarm.

The #1151W200H Indoor and/or Outdoor Control Panel with Alarm is specifically designed for single pump applications. This system not only controls the on and off operation of the pump but will also warn you of a high liquid level condition.
Indoor/outdoor pump control panel
1151W200H Pump Control

with Alarm System
The #1151W200H system includes a NEMA 4X waterproof fiberglass enclosure. The outside of the enclosure is equipped with a green pump indicator light, a red flashing alarm beacon, a silence and alarm test switch as well as a manual override switch. The manual override switch allows you to manually select the function of the controller to be set for automatic operation, hand (manual) operation or to "off".
The outside dimensions for this pump/alarm control panel system can be viewed here.

The internal portion of the enclosure comes equipped with a fuse protected control panel with a weather proof horn, a top of the line alarm relay, a solid state flasher and a light bulb. To protect against unauthorized activation an "on/off" switch that controls the alarm system is also located inside the panel. Two float switches with 20' cords are included. One float switch controls the alarm and the other float switch controls the pump to turn on or turn off.
The RFSN-9 Piggyback Float Switch is a direct acting, wide angle, in-line control device designed to automatically turn on and off a manual pump used in a wastewater, effluent, and/or sewage application. This mechanical float switch provides simplistic automatic operation of one manual pump. The float switch includes, a 15' cord with a piggyback plug attached to the float, one large mounting strap and two small adjustable mounting clamps. Easily installed in just a few minutes, the "on" and "off" level can be determined and set by the installer by simply adjusting the length of the tether. Image of the Little Giant RFSN-9 Float Switch
RFSN-9 Float Switch
For hard wire installations the RFSN-20 Float Switch should be used. The RFSN-20 comes standard with stripped leads and no plug. The RFSN-20 includes one float, a 20' cord without a plug, one large mounting strap and two small adjustable mounting clamps. The RFSN-20 float switch is designed for direct wire installation. The "on" and "off" level will be determined by the installer by adjusting the length of the cord tether.

The RFSN-9 Float Switch and the RFSN-20 Float Switch are intended for use with one manual pump not to exceed their maximum voltage or amperage rating. They are not to be used as a replacement float switch for any of the control panels shown on this page. The RFSN-9 and RFSN-20 Float Switches and #1151W200H17A Control Panel listed in this section are for use with the 14S-CIM 200/208 volt or 230 volt pumps.

Model Description Price & Quantity
#RFSN-9 Float Switch 230 volts, 13 amp maximum, 15' cord
with piggyback plug
$59.90
#RFSN-20 Float Switch 115/208/240 volts, 20 amp maximum, 20' cord
no plug - stripped leads
$124.80
1151W200H Indoor/Outdoor Pump Control with Alarm, 120/208/240, 15 amp max
includes 2 float switches with 20' cords
$589.98

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Automatic Controls for 16S-CIM PUMPS
We offer two types of automatic operation devices for the 16S-CIM pumps. The Indoor/Outdoor control panel with audible and visual alarms or a simple mechanical piggyback Float Switch.
Indoor/outdoor pump control panel
1151W200H Pump Control

with Alarm System
The Indoor and/or Outdoor alarm control panel is for single pump applications. This system controls the on/off operation of the pump and will warn you of a high liquid level condition. The #1151W200H control system includes a NEMA 4X waterproof fiberglass enclosure equipped with a green pump indicator light, a red flashing alarm beacon, a silence and alarm test switch and a manual override switch. The manual override switch allows you to change the controller operation from automatic to hand (manual) operation or to "off"
View the outside dimensions of this pump/alarm control panel system here.

The enclosure contents include a fuse protected control panel with a weather proof horn, an audible alarm relay, a solid state flasher and a standard light bulb. To protect against unauthorized activation an "on/off" switch that controls the alarm system is also located inside the panel. Two float switches with 20' cords are included. One float switch controls the pump on/off and the other controls the alarm.
The RFSN-9 piggyback remote Float Switch provides automatic operation of a manual pump. The float switch includes one float, a 20' cord with a piggyback plug, one large mounting strap and two small adjustable mounting clamps. The float switch can easily be installed to regulate the "on" and "off" level desired for your application by simply adjusting the tether length. Image of the Little Giant RFSN-9 Float Switch
RFSN-9 Float Switch
For installations requiring hard wiring the RFSN-20 Float Switch designed for direct wire applications should be used. The RFSN-20 comes standard with stripped leads (no plug). The RFSN-20 float switch includes a 20' cord without a plug, one large mounting strap and two small adjustable mounting clamps. The "on" and "off" level can be established by the installer by adjusting the length of the cord tether.

The RFSN-9 Float Switch and the RFSN-20 Float Switch are intended for use with one manual pump. They are not to be used as a replacement float switch for any of the control panels shown on this page.

The RFSN-9 and RFSN-20 Float Switches and #1151W200H17A Control Panel listed in this section are for use with the 16S-CIM 200/208 volt or 230 volt pumps.

Model Description Price & Quantity
#RFSN-9 Float Switch, 230 volts, 13 amp maximum, 15' cord
with piggyback plug
$59.90
#RFSN-20 Float Switch 115/208/240 volts, 20 amp maximum, 20' cord
no plug - stripped leads
$124.80
1151W200H Indoor/Outdoor Pump Control with Alarm, 120/208/240, 15 amp max
includes 2 float switches with 20' cords
$589.98

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Automatic Controls for 20S-CIM PUMPS
We offer two types of automatic operation devices for the 20S-CIM pumps. The very simplistic and less costly of the two is the mechanical Float Switch. We also offer the #1121W120H17A Indoor/Outdoor control panel that has an audible and visual alarm.
Image of the 1121W120H17A Control Panel
1121W120H17A
Control Panel
with Alarm System
The #1121W120H17A Indoor and/or Outdoor Control Panel with a high water alarm is for single pump applications. This system controls the on and off operation of the pump and will sound an audible alarm and flash a red light to warn you when a high liquid level condition occurs. The #1121W120H17A system includes an outdoor rated NEMA 4X waterproof fiberglass enclosure.

There are numerous features located on the outside of the enclosure enabling you to monitor the system without opening the enclosure.
A green pump indicator light lets you know when the pump is running. An alarm beacon flashes a red light to warn you of a high water condition. A silence switch with an automatic reset also lets you test the alarm system when you want. There is also a manual override switch, allowing you to change the controller from automatic operation to hand (manual) operation or to "off" as needed.

The outside dimensions for the Indoor/Outdoor Control Panel system can be viewed here.
The inside of the enclosure contains the following fuse protected components: a top quality alarm relay, a weather proof horn, a solid-state flasher and a light bulb. For your protection against unauthorized activation, an "on/off" switch that controls power to the float circuitry is also located inside the enclosure. Three float switches with 20' cords are included. One float switch controls the pump alarm, one controls the pump to turn on and the third one controls the pump to turn off.
The RFSN-20 is a remote wide angle Float Switch for use with pumps up to 250 volts that use a maximum of 20 amps. This Float Switch provides simplistic automatic operation of one manual pump. The RFSN-20 consists of one float, a 20' cord without a plug, one large mounting strap and two small adjustable mounting clamps. The RFSN-20 plug-less float switch is designed for direct wire installation. The "on" and "off" level will be determined by the installer by adjusting the length of the cord tether. Image of the RFSN-20 Float Switch
RFSN-20 Float Switch
The RFSN-20 Float Switch should not be mistaken as a replacement float switch for the #1121W120H17A Control Panel system. It is strictly for use with one pump to start or stop the pump as directed by the on and off level settings of the float switch.

Both automatic control devices, the RFSN-20 Float Switch and the #1121W120H17A Control Panel, listed in this section are for use with the 20S-CIM 208-230 volt pumps.

Model Description Price & Quantity
#RFSN-20 Float Switch 125/250 volts, 20 amp maximum, 20' cord
no plug - stripped leads
$124.80
1121W120H17A Pump Control with Alarm - 208/240V,60HZ - 1 Phase
20 amp max.- includes 3 float switches with 20' cords
$690.92

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Related Items & Accessories:
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Frequently Asked Questions

Q. "Do I really need a check valve in the discharge piping?"
A. Yes. You should always use a check valve in sewage pump discharge piping. A check valve will keep sewage waste and effluent liquid from returning back to the pump once it has been pumped out. Without a check valve effluent liquid and sewage waste returning to the pump can cause the pump to cycle continuously on and off causing the pump to burn out or fail prematurely.

Q. "What is the difference between a sewage ejector pump and a grinder pump?"
A. A sewage ejector pump has impellers that enable the pump to pass predetermined sizes of solid waste material without clogging the discharge. A grinder pump has cutter blades that macerate and shred waste solids and items not normally found in sewage, but may get flushed down the toilet. These smaller, shredded, particles can then be passed through the pump impellers out the discharge.



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