Great. I was left for Christmas and 15days & over 40 gallons later the sump was still full and the floor was dry. The only change i have made recently is i extended the distance from the pivot to the switch (to allow for more travel for positive shut off and you get more upward force from the longer moment arm. I just add water to the reserve bucket couple of times a week. It is so much better than adding water several times a day.