1994 Dodge Caravan rain fall

Without seeing the car I would say the water pump is bad and when driving or the cooling fans come on it can blow the fluid on both sides of the engine. When you put a new water pump in flush the system and replace the thermastat the stop leak could case it to stick if not now later down the road.
Make sure it is the water pump check the small hole in the back and when the water pump when thye go bad it usually leaks from that hole.

Sometimes the water pump will leak in between the heads in the block and come out the drivers side. There is a hard line with an o'ring runing there over to the top radiator hose.