Is this the Hydros ATO pump? if so you maximum on time should be seconds instead of minutes in most cases. Also you might want to set a larger minimum off time so it cannot run as often. I use 30 minutes on mine. Set a minimum on time of 1 second. You can also set a maximum off time of several hours. The maximum on time and maximum off time will send an alert. I am not sure exactly how much water it will pump is say 5 seconds, but you can set a maximum on time of 5 seconds and the have it dispense in a dontainer then lift the water sensor enough to trigger a fill then it should run for 5 seconds then turn off and alert you. Then you can use that amount as to how long you want to set the maximum on time for. Using a maximum on time with run past maximum set to off and the minimum off time will limit how much it can add in a given amount of time. It did take me a little time to get the settings to where if I get an alert now something has happened and need to be addressed.