Water Witch Pumps

Water Witch Sensors

Water Witch, Inc. of Santee, CA is a manufacturer of electronic bilge pump switches, electronic bilge alarms sensors, bilge pump control panels, and other electronic bilge-related items. They have been in business for 16 years and have gained a reputation for easily-installed, highly-reliable products.

Selection:

Bilge Pump Switches:

Model 217 --
Voltage:12vdc
Max Pump Size: 10 Amps
Sensor Current at Rest: .006 Amps
# of Sensors: 2


Model 230 --
Voltage: 12vdc
Max Pump Size: 2 Amps
Sensor Current at Rest: .006 Amps
# of Sensors: 2


Model 230-24 --
Voltage: 24vdc
Max Pump Size: 15 Amps
Sensor Current at Rest: .006 Amps
# of Sensors: 2


Model 101 --
Voltage: 12vdc
Max Pump Size: 10 Amps
Sensor Current at Rest: .006 Amps
# of Sensors: 1

Dimensions:
Models 217,230,230-24 -- 2 5/8"W x 1 5/8"H x 1 5/8"D
Model 101 -- 2" W x 1.335"H x 1"D

High Water Alarms:

Model 23-12 or 23-12B --
Voltage: 12vdc
Max Pump Size: 10 Amps
Sensor Current at Rest: .006 Amps
# of Sensors: 2
Size: 2 5/8"W x 1 5/8"H x 1 5/8"D
23-12B haze built in Piezoelectric Buzzer

Model 23-24 --
Voltage: 24vdc
Max Pump Size: 15 Amps
Sensor Current at Rest: .006 Amps
# of Sensors: 2
Size: 2 5/8"W x 1 5/8"H x 1 5/8"D

Model 10-12
Voltage: 12vdc
Max Pump Size: 15 Amps
Sensor Current at Rest: .006 Amps
# of Sensors: 1
Size: 2" W x 1.335"H x 1"D


Opinions --
I like the two sensor models because they are easily tested by putting a finger or other conductive object across both sensors. The 101 is designed to be easily mounted to most existing bilge pumps. Both styles require periodic wiping off of the sensors to perorm correctly. The differenct between the Bilge Pump sensors and the High Water sensors is that the Bilge Pump sensors require water to be present for 6-8 seconds after contating the lower sensor (to reduce pump cycligng from sloshing water) and will remain on for 14 seconds after the water level has dropped below sensor hieght to help clear the discharge line. The High Water sensors, on the other hand, will turn on when water is present for at three seconds an will immediately shut off after the water level has dropped. They also have combination sensors which can control multiple pumps or a pump and an alarm.

Water Witch also make line of Bilge Pump control panels and counters which I highly recommend.

Check out their website at Anything bilge - bilge switch, high water, bilge counter