The most common problem associated with a “no water” call, is a water pump failure. Water pumps work very hard to supply us with water from the well, so from time to time, they need a little maintenance, or to be replaced.
Well Water Depletion
Some wells are low yielding, some wells are abundant, however, it’s always possible to run your well dry, especially if you’re placing high demand on it. Hot, dry weather is a high risk time for running your well out of water, so you may want to rethink filling your pool or hot tub for any length of time. Believe it or not, a running toilet can also significantly deplete the water in your well. One clue that you have run out of water, is that you will hear your pump running continuously, and the pressure gauge will be at zero, or very low. If this happens, turn power off to your pump immediately, or it could burn out.
Underground Water Leak
Sometimes, the cause of sudden low water pressure in your home, can be an unseen leak in an underground water pipe. Other signs of an underground water leak include cloudy water or noticing that your water pump is cycling on and off continually. If you think you may have a leak, you could turn the power off to the water pump, and watch the pressure gauge (either on the pump or pressure tank) to see if the gauge starts dropping down towards zero. If it does, then you likely have an underground water leak.
Another cause of water loss is an electrical failure. The contacts on the pressure switch could be full of carbon dust, therefore unable to send the proper signals to start your pump. This one is a bit tricky (rather dangerous, in fact!) to check on your own, unless you are comfortable testing electrical circuits. If you have a submersible pump, it’s possible that there is a broken wire, or a bad control box.
Plugged Pressure Switch
The pressure switch on your tank or your pump, is the device that stops and starts your pump, using water pressure. Occasionally, the piping leading to the pressure switch plugs up with minerals from the water. When this happens, what you will usually notice is extreme fluctuations in water pressure.