9
INSTALLATION INSTRUCTIONS
(CONTINUED)
Pump Float Assembly
Model SBA025T1, SBA033T1, and SBA050T1 are supplied with tether float assemblies which are attached to the pump.
Models SBA025V1, SBA033V1, and SBA050V1 are supplied with vertical float assemblies. These vertical float assemblies must
be attached to the pump. Refer to the following diagram for assembly.
Installation for Proper Pump Operation
The pump MUST be secured in a manner that prevents the pump from moving. If the pump is allowed to move, the float
switch could be restricted by the sump wall, preventing the pump from turning on/off. The minimum diameter sump hole
should be no less than 356 mm [14”] for a tethered float and 254 mm [10”] for a vertical float. The minimum depth should be
no less than 457 mm [18”] for tethered models and 356 mm [14”] for vertically switched models. The tether length should be
no shorter than 76 mm [3”] for proper operation. Do NOT increase the tether length on the float switch to more than 127 mm
[5”] tether or the pump will NOT turn off.
To allow the unit to deliver maximum capacity, the sump should be kept free of accumulated sediment. A 32 mm [1 ¼”]
discharge pipe will give best performance for this pump. The vertical distance from the pump to the highest point of discharge
piping should NOT exceed 6 m [20 ft.]. Keep trash or other objects from interfering with the float.
Pump and Piping
The pump and piping should be positioned securely so that the float will not hang up on the side of the sump, the power cord,
or the discharge pipe. The discharge pipe should be 32 mm [1 ¼”]. A union should be installed to facilitate installation and a
check valve is recommended to prevent water from draining back into the sump and increasing pump operating frequency.
The discharge pipe should be routed to the point of disposal with a minimum number of elbows to reduce losses.
A rigid discharge pipe is recommended to prevent the pump from moving. If a flexible discharge hose is used, the pump hose
MUST be secured in a manner that prevents the pump from moving. If the pump is allowed to move, the float switch could be
restricted by the sump wall, preventing the pump from turning on/off.
