My old water pump went bad this morning --i got the same pump and hooked it exactly like it was before. Installed a new pressure tank just like the old one . Expected the best but have no water. Water pressure was fine last night when we went to sleep. How long should a well take on a self priming pump to bto fill my reservoir and then get water back to my house! Please help my wife wants to kill me!

You need to prime the pump, make sure the switch is working properly and the pressure in EMPTY pressure tank is 2 lbs below the cut in pressure of switch. The only self priming pump is a submersible pump. Even if you had water initially there was air in the system and when it started up on next cycle it lost it's prime.
RJ