1. Clean any debris from sump pit and set pump in center of pit. A solid bottom will prevent clogging of the pump from sand and dirt.
2. Connect discharge piping and run it to the nearest sewer or surface outlet. Use pipe joint compound at all connections. Sump pumps can be piped to discharge into the house drainage system, to a dry well, splash block or to a storm drain, depending on local plumbing codes. The discharge pipe should be as short as possible and contain as few elbows as possible. The discharge pipe should be the same diameter as the discharge size to reduce pipe friction losses. Smaller pipe will restrict capacity and reduce pump performance. The sump pump comes with 1-1/2" female pipe thread discharge, and 1-1/4" FNPT reducing bushing.
3. Always install a union in the discharge line, just above the sump pit, to allow for easy removal of the pump for cleaning or repair.
4. In situations where the piping is long, the vertical discharge is above 7 or 8 feet, or a small pit has been provided, use of a check valve is recommended to prevent backflow of water into the sump. When a check valve is used, drill a relief hole (1/8" or 3/16" diameter) in the discharge pipe. This hole should be located below the floor line between the pump discharge and the check valve. Unless such a relief hole is provided, the pump could "air lock" and will not pump water even though it will run.
5. Tape pump and switch cords to discharge line with electrician's tape. This will protect the cords from damage and will prevent power cords from interfering with the float.
6. TEST THE PUMP AFTER ALL CONNECTIONS HAVE BEEN MADE. Run water into sump. Do not attempt to operate the pump without water; this will damage the seals and bearings and could result in permanent damage to the pump. Fill sump to normal "on" level and allow pump to remove water to the normal "off" level (see fig. 2).
7. Place cover over sump. This cover will prevent solid debris from filling the pit. prevent odors, and guard against accidental injury.
|Pump will not shut off
Note: Before trouble shooting automatic control, check to see that the pump
operates on manual control. To do this, create slight vacuum on breather tube
(near plug), then close off tube with thumb, plug into wall outlet. If the
pump works, proceed to check switch; if not, fault is in the pump or power supply.
|Weak or hardened rubber diaphragm
||Replace rubber diaphragm
|Plugged vent tube
||Clear vent tube of any obstructions
|Dirt or sediment lodged between retainer ring and rubber diaphragm causing contacts to remain closed
||Clean area around rubber diaphragm
|Pump is air locked
||Shut power off for approximately 1 minute, then restart. Repeat several times to clear air from pump. If system includes a check valve, a 3/16" hole should be drilled in discharge pipe approximately 2" above discharge connections.
|Liquid inflow matches pump capacity
||Larger pump required
||Disconnect switch, check 2/ohmmeter, Open-infinite resistance, closed-zero
|Loose connection in level control wiring
||Check control wiring
|Pump runs but does not discharge liquid
||Check valve installed backwards
||Check flow indicating arrow on check valve body to insure it is installed properly.
|Check valve stuck or plugged
||Remove check valve and inspect for proper operation
|Lift too high for pump
||Check rating table
|Inlet to impeller plugged
||Pull pump and clean
|Pump is air locked
||(See corrective action above)
|Pump does not deliver rated capacity
||Lift too high for pump
||Check rated pump performance
|Low voltage, speed too slow
||Check for proper supply voltage to make certain it corresponds to nameplate voltage
|Impeller or discharge pipe is clogged
||Pull pump and clean. Check pipe for scale corrosion
|Impeller wear due to abrasives
||Replace worn impeller
|Pump cycles continually
||No check valve in long discharge pipe allowing liquid to drain back into sump
||Install a check valve in discharge line
|Check valve leaking
||Inspect check valve for correct operation
|Sump pit too small for inflow
||Install larger sump pit