Our water pump in our new house broke down last week. My hubby tried to fix it but no success at all. So we called a repairman who happened to be my parents-in-law's regular repairman. He said to be an expert in everything concerning pumping, wells, hoses, and anything like that. Well, in just minutes he could figure out what went wrong with the pump. It was the automatic liquid level control switch, which functions as the switch for filling up water automatically to the water tank once the water level reached its limit (almost-empty limit). He suggested us to replace the switch immediately, otherwise we wouldn't be able to get water. He recommended to buy the switch made by Radar. My hubby then searched for it, and to my surprise, the switch was very easy to find in electric store. The product is called Radar Liquid Level Control Switch Model ST-70AB. This switch is made in Taiwan, produced by a company named Shintung. This comes in a box with a piece of paper indicating the manual (poorly written but my hubby seemed to understand how to install it since it comes with pictures of installation). The set comprises of two sinkers, the switch, and the rope (the rope is already tied to the switch). The switch is meant to be tied with the sinkers and this should be done vertically. The power supply needed to operate this automatic switch is 110/220V - 50/60Hz. The temperature limits allowed for this to work is around 5-60 degrees Celcius. The maximum pump power by direct control is 1 HP.
So far our pump has been doing okay since my hubby installed this switch to our pump. The storekeeper told us that this switch was the best indeed. I just hope that it will last long since it's said to be the best product. Let's just see.