Thanks both of you - we managed to have a shower before the water runs out - its still running and my neighbour (whom we share the pump) said that she has had water all day - which confuses me - I can not feel the pump running and I can see the part that needs to be touching the other part not doing so. Is that part just to start it up or is it needed to keep it going? When I get the two parts to touch, the pump vibrates (I cannot hear any noise, obviously) but then it moves and the vibrating stops.
We ran out to the store and got some water in case.
And if it indeed is electrical, my landlords won't be back til Saturday night, what can we do legally, like call an electrician? We cannot cook without water, we will have to go to a laundromat, etc and I don't want to have to spend a lot of money that we are trying to save on the bare necessities.