Water is leaking into car, passenger side floorboard carpet is soaked?

What is your question?

Engine was overheating about 6 weeks ago after a long drive. Coolant was empty. Added water and kept driving. Had to do this maybe 2 more times while on a 5 hour drive. Once back home had to add water maybe 2 additional times but over the following week. Since then no problems. I have water in the reserve not coolant. But have only had to add more maybe once or twice and it’s been over a month. Well about 2 weeks ago I notice passenger carpets were soaked. Car runs fine A/C is always running due to the lovely hot weather in the south. And it works great. I haven’t needed to turn on heat but how can I determine if this is an AC issue or bad heater core?

What makes this problem better or worse?

Haven’t tried anything

How long has your 2011 Mazda 3 had this problem?

The leak about 2-3 weeks