I have a water deposit, with a pressure booster pump, very similar to this one:
Recently the pump stopped working properly. I don't get any water in the tap and, after inspection, I see that the suction hose has air.
I've solved the issue by filling the hose with water, but the problem happens again.
What might the problem be? What are the most common cases to get air into the suction hose? What can I do to prevent the pump from eventually working dry (it didn't get to that point)?