Just bought a house with an in-ground pool, don't know much about it. We replaced the pump, hoses, filter handle, filter sand, and pressure gauge. We removed the two plugs from the sides of the pool and the gizzmo, then primed the new pump. The pressure gauge is still reading 0 and there is no water flow. Any advice you have would be more than welcome! We live in an area where we are unable to get a professional to come out and have made many trips to the closest pool store with no luck so far.