I can turn on the shower or spickets and nothing comes out. Other times, the normal pressure. We have a well and live in a duplex, The well tank is not on my side. I have the sump pump on my side. Does it have anything to do with the sump pump?

When you are getting no water, you need to check and see if the pressure tank has pressure on the gauge. Obviously, you have to be able to get to the tank to check that.

The sump pump has nothing to do with this.