Jabsco Pumpa Rule 800 12V

J20R

Rule automatic pumps turn on and check for water approximately every 2-1/2 minutes. During this check, the pump runs for about one second and measures for resistance or drag against the impeller. If resistance (water) is encountered, it will run for a long as water is present. When all the water is pumped out, the pump shuts off and returns to its 2-1/2 minute test cycle.