Installed a new pump lid about two years ago because the old one was yellowing. Have since replaced and lubed the ring twice the most recent a couple days ago. I notice that when the pump is running there is no water leaking out, but once it shuts off some water squirts out the top for a second then stops. When I check on it the next day, the water is generally down to where the inlet pipe is and it takes a little bit to prime. Concerned of burning up the pump if not enough water gets into pump in time. I have tightened lid hand tight then a couple of taps with rubber hammer. Leak seems to be in one spot on the top of housing but don’t see or feel any cracks or damage. You would think if it was going to leak it would be under pressure but the opposite is happening. Ang ideas?