We have a 10,000 gallon cistern and 3 days ago it ran out ofwater unfortunately it is the ONLY water source for the house. We do have a guy who comes and filles it when needed but only 1000 gallons. We have run out before occasionally we had to prime the pump, which we did this time. The pump runs constantly and we cannot get any water to the house. There is water coming to the pump which I found out when a hose came off, i replced the hose. I checked to make sure the valves to the house hadnt been closed and it was not. It is like it pumps to the pump, but then will not reach the house, as though theres a blockage. Where do I go from here?