Instructions / Assembly

Base Products Corporation www.basepump.com 800 554 1426 page

Models: RB750 HB1000 CB1500 Copyright by Base Products Corporation 2017 Rev. May/2017

Clamp to Pipe

Step 7. Install Water Alarm (see specifications with alarm) (RB and HB sizes only; CB alarm is different)

 Install the battery: Remove battery compartment cover on the back of the alarm. Pull out float and wire stored inside.

Snap a 9-volt battery onto the battery connector, place the battery inside compartment, line up float wire into slot at

bottom of alarm, and replace cover.

 Mount the Alarm: Stick plastic cable tie mount to upper back of alarm; wrap releasable cable tie

through the mount and around the suction pipe ~4 feet above floor, or to a wall using screws.

 Position the sensor float: Clamp bracket to the pipe (shown here) or screw to the sump wall.

Typical height would be just above the normal high water level in the sump, so it alarms at the

same time as the backup pump turns on.

 Replace the battery when the alarm has operated for an extended period of time. Alarm will

“chirp” when the battery needs to be replaced. A new battery should last a year, on standby.

 Relay Outputs: These are no volt, Normally Open, “dry” contacts that close when the alarm

sounds and open when it stops. These may be connected to a security system or auto-dialer.

 Operation: When the float is up the alarm sounds and the relays close. Alarm must be manually reset.

Start Up Procedure

Open the water shut-off valve and check for leaks. Note: Pump may turn on at this time so be sure the discharge piping is

completed. Lift the float ball for 10 seconds to release air trapped in the Ejector and Transfer Tube. Air and water will

release from the drain port on the float unit just above the float ball. The first cycle may take longer than normal to shut off.

Factory setting is approximately 30 seconds after the float ball drops to its lowest position. Pump should stop after 30-

60 seconds. Lift the float a second time after the first run is over. If pump continues running too long or shuts off too

quickly, see “Adjusting the Timing Control” section on page 8.

Operating Instructions

Pump operates automatically. To operate manually, lift the float ball in the sump to its upper position for a few seconds till

the water starts running and then lower it, simulating a normal rise and fall of the water and allowing the pump to operate

through a complete cycle. This flushes the water pipes and confirms that the pump is functioning properly.

Periodic Testing Procedures

It is necessary to test this pump at least once every 3-4 months to ensure proper basement flood protection and to protect

your warranty. Follow the procedures noted here, write down each of your test dates, and keep it with these instructions in

a convenient location on or near the pump.

Confirm that:

 Float ball moves freely up and down in sump.

 When float ball is lifted, water flows from the port just above the float ball and the water stops flowing from this port

when you lower the float ball.

 The pump runs and removes water for approximately 30-40 seconds AFTER the float ball drops to its lowest position.

 Pump then turns itself off. This is the factory setting, but it may have been adjusted to run longer or shorter depending

on sump water inflow rates. If needed, see “Adjusting the Timing Control” on page 8.

Water Alarm Kit