Little Giant Simplex 10S-SMPXRT-K Manual Download Page 1

PRE-PACKAGED UNIT (Figure 1):

Verify all parts with basin and cover assemblies are received 
intact. The selected discharge and vent size will determine which 
flanges to use. The flanges provided will allow the following vent/
discharge combinations to be used: 2" discharge/3" vent, 3" discharge/
2" vent, or a 2" discharge/2" vent. 

NOTE:

 The cover has three 

prefabricated holes, one to fit the 2-hole cord grommet, one to 
fit the 2" flange, and one to fit the 3" flange or 3" to 2" reducer 
flange (Figure 3). Remove proper flanges from the hardware kit to 
accommodate the vent/discharge combination used.
  1. Remove bolts and washers in cover and set aside.
 2. Remove gasket tape from hardware kit and place around cir-

cumference of basin inside of bolt circle.

 3. Install the discharge pipe in the discharge of the pump and 

place the pump in the basin.

 4. Install float switch 4" above discharge of pump with a 3-1/2" 

tether length. Float switch should be installed in a manner that 
will not allow it to contact the pump or side of basin during 
operation. Refer to float switch instruction manual for alternative 
settings.

 5. Install the flange that fits the discharge on the underside of 

the cover. Lube the flange and discharge pipe with liquid dish 
soap. Route the power cord and float switch cord through the 
smallest hole before installing cover. Slide the cover with the 
flange in place over the discharge pipe.

LITTLE GIANT 

SEWAGE ACCESSORIES 

9S-SMPXRT-K

10S-SMPXRT-K

 6. Install the cord grommet by placing the power cord and float 

switch cord in the grommet openings. Then push the grommet 
into the smallest hole in the cover.

 7. Install an adapt-a-flex flange in the remaining hole that cor-

responds to the vent pipe size used. Lubricate the flange 
and vent pipe and press the vent pipe into the flange 2 to 3 
inches.

 8. The 4" multi-tite flange comes pre-installed on the basin, and 

will accept either a cast iron or PVC intake. Apply liquid dish 
soap to the multi-tite flange and intake pipe to ease installa-
tion, then install pipe into flange.

PRE-ASSEMBLED UNIT (Figure 2):

The pre-assembled unit is furnished fully assembled and ready 
for installation. Install the appropriate 4" intake flange into side of 
basin. Remove check valve from discharge pipe and re-install as 
shown on typical installation (Figure 3). 

CAUTION:

 For best per-

formance of check valves when handling solids, install in a hori-
zontal position or at an angle of not more than 45°. Do not install 
check valve in a vertical position as solids may settle in valve and 
prevent opening on start-up. Remove the cord from the vent hole 
and install the vent pipe in the hole with the adapt-a-flex flange. 
(See Figure 3 to complete typical installation.)
To test the unit, plug the unit in and run water into the basin until 
the unit switches on. If the unit does not operate, refer to the 
troubleshooting information in the instructions for the pump.

NOTE:

 When placing a pump with a 3" discharge into the basin, 

the only leg that will be placed in the molded leg holders on the 
bottom of the basin will be the leg directly under the discharge of 
the volute. The other two legs will rest on the flat surface of the 
bottom of the basin.

Figure 2. Pre-Assembled

Figure 1. Pre-Packaged

Franklin Electric Co., Inc.

P. O. Box 12010

Oklahoma City, OK 73157-2010

405.947.2511 • Fax: 405.947.8720

www.LittleGiantPump.com

[email protected]

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