Yes I agree about the stop leak, it is a quick fix until you have the time or cash to do a permanant repair. I have replaced an AC Condensor on a 89 Daytona and had to remove the complete dash and console. It was an all day job. I agree that if it is clear water its not the heater core. You will smell it through the heater/AC vents if the core was leaking.
"If It Aint Broke, Fix It Till It Is!!!!!"
05 TJ Rubicon, 4.0L, 6 Speed.
07 Ram 1500 Quad Cab