We came home one day to find our bathroom floor soaked, and we had no water at all.we later found out that it was the washing machine hose leaking.Our friend primed the pump but isent an expert..we fixed that problem with a new hose.A few weeks after, we started to notice that when you are in the shower, the water would shut off for a minute and come back on for a minute, so on so on, perfectly timed., and this got worse and worse, yesterday it would be on for like 20 secconds and off for 3 minutes... last night the water was working good but today we woke up with no water.The water taps in the house hardly do it at all. I also noticed that when we are running water the water pump goes crazy fast, i can hear it because its a mobile home.
If this is a well you are talking about, it may be a faulty pressure switch for a start from kicking on to often, and also it sounds as thou you don't have enough air in your tank not leaving enough air pressure so your pump kicks on too soon, and shuts off to soon. Check your pressure switch, and drain your tank completely, and see if that works. You will have some air at first, but it will stop in time. Your tank also needs to be in the right position as well keeping the right amount of air in it. Sounds like your pump motor still may be OK. One more thing, check to see if your check valve is shot.
I'm guessing that you have a well. The others had some good points and I would just like to add that I had a similar problem with my pump. Turned out that the tank had to much air in it and was fooling the pressure switch.
if you are sure that your well is good then .......... sounds like it is time for a new pump - money saved $150, plumber house call pretty easy fix get your pipe wrenches after you turn of all the water mains and remove the pump - even go borrow some or buy some still cheaper haul it to menards or lowes puchace and identical one in a box - name may be different read the instructions - this is the important part reinstall the pump tada all done - good days work for a novice - accomplished something and earned that hot shower and saves about $300 or more by not calling the plumber - plus that 150 for a total of about 450 - cha ching - new blue jean for the kids, a car payment whatever suits